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25 // 25 //
26 ////////////////////////////////////////////// 26 ////////////////////////////////////////////////////////////////////////
27 // Optical Photon Boundary Process Class Imple 27 // Optical Photon Boundary Process Class Implementation
28 ////////////////////////////////////////////// 28 ////////////////////////////////////////////////////////////////////////
29 // 29 //
30 // File: G4OpBoundaryProcess.cc 30 // File: G4OpBoundaryProcess.cc
31 // Description: Discrete Process -- reflection 31 // Description: Discrete Process -- reflection/refraction at
32 // optical in 32 // optical interfaces
33 // Version: 1.1 33 // Version: 1.1
34 // Created: 1997-06-18 34 // Created: 1997-06-18
35 // Modified: 1998-05-25 - Correct parallel 35 // Modified: 1998-05-25 - Correct parallel component of polarization
36 // (thanks to: Stefa 36 // (thanks to: Stefano Magni + Giovanni Pieri)
37 // 1998-05-28 - NULL Rindex point 37 // 1998-05-28 - NULL Rindex pointer before reuse
38 // (thanks to: Stefa 38 // (thanks to: Stefano Magni)
39 // 1998-06-11 - delete *sint1 in 39 // 1998-06-11 - delete *sint1 in oblique reflection
40 // (thanks to: Giova 40 // (thanks to: Giovanni Pieri)
41 // 1998-06-19 - move from GetLoca << 41 // 1998-06-19 - move from GetLocalExitNormal() to the new
42 // method: GetLocalE 42 // method: GetLocalExitNormal(&valid) to get
43 // the surface norma 43 // the surface normal in all cases
44 // 1998-11-07 - NULL OpticalSurfa 44 // 1998-11-07 - NULL OpticalSurface pointer before use
45 // comparison not sh 45 // comparison not sharp for: std::abs(cost1) < 1.0
46 // remove sin1, sin2 46 // remove sin1, sin2 in lines 556,567
47 // (thanks to Stefan 47 // (thanks to Stefano Magni)
48 // 1999-10-10 - Accommodate chang 48 // 1999-10-10 - Accommodate changes done in DoAbsorption by
49 // changing logic in 49 // changing logic in DielectricMetal
50 // 2001-10-18 - avoid Linux (gcc- 50 // 2001-10-18 - avoid Linux (gcc-2.95.2) warning about variables
51 // might be used uni 51 // might be used uninitialized in this function
52 // moved E2_perp, E2 52 // moved E2_perp, E2_parl and E2_total out of 'if'
53 // 2003-11-27 - Modified line 168 53 // 2003-11-27 - Modified line 168-9 to reflect changes made to
54 // G4OpticalSurface 54 // G4OpticalSurface class ( by Fan Lei)
55 // 2004-02-02 - Set theStatus = U 55 // 2004-02-02 - Set theStatus = Undefined at start of DoIt
56 // 2005-07-28 - add G4ProcessType 56 // 2005-07-28 - add G4ProcessType to constructor
57 // 2006-11-04 - add capability of 57 // 2006-11-04 - add capability of calculating the reflectivity
58 // off a metal surfa << 58 // off a metal surface by way of a complex index
59 // of refraction - T << 59 // of refraction - Thanks to Sehwook Lee and John
60 // Hauptman (Dept. o 60 // Hauptman (Dept. of Physics - Iowa State Univ.)
61 // 2009-11-10 - add capability of 61 // 2009-11-10 - add capability of simulating surface reflections
62 // with Look-Up-Tabl 62 // with Look-Up-Tables (LUT) containing measured
63 // optical reflectan 63 // optical reflectance for a variety of surface
64 // treatments - Than 64 // treatments - Thanks to Martin Janecek and
65 // William Moses (La 65 // William Moses (Lawrence Berkeley National Lab.)
66 // 2013-06-01 - add the capabilit <<
67 // of a dichronic fi <<
68 // 2017-02-24 - add capability of <<
69 // with Look-Up-Tabl <<
70 // 66 //
71 // Author: Peter Gumplinger 67 // Author: Peter Gumplinger
72 // adopted from work by Werner Keil - April 68 // adopted from work by Werner Keil - April 2/96
>> 69 // mail: gum@triumf.ca
73 // 70 //
74 ////////////////////////////////////////////// 71 ////////////////////////////////////////////////////////////////////////
75 72
76 #include "G4OpBoundaryProcess.hh" <<
77 <<
78 #include "G4ios.hh" 73 #include "G4ios.hh"
79 #include "G4GeometryTolerance.hh" <<
80 #include "G4LogicalBorderSurface.hh" <<
81 #include "G4LogicalSkinSurface.hh" <<
82 #include "G4OpProcessSubType.hh" 74 #include "G4OpProcessSubType.hh"
83 #include "G4OpticalParameters.hh" <<
84 #include "G4ParallelWorldProcess.hh" <<
85 #include "G4PhysicalConstants.hh" <<
86 #include "G4SystemOfUnits.hh" <<
87 #include "G4TransportationManager.hh" <<
88 #include "G4VSensitiveDetector.hh" <<
89 75
90 //....oooOO0OOooo........oooOO0OOooo........oo << 76 #include "G4OpBoundaryProcess.hh"
>> 77 #include "G4GeometryTolerance.hh"
>> 78
>> 79 /////////////////////////
>> 80 // Class Implementation
>> 81 /////////////////////////
>> 82
>> 83 //////////////
>> 84 // Operators
>> 85 //////////////
>> 86
>> 87 // G4OpBoundaryProcess::operator=(const G4OpBoundaryProcess &right)
>> 88 // {
>> 89 // }
>> 90
>> 91 /////////////////
>> 92 // Constructors
>> 93 /////////////////
>> 94
91 G4OpBoundaryProcess::G4OpBoundaryProcess(const 95 G4OpBoundaryProcess::G4OpBoundaryProcess(const G4String& processName,
92 G4Pro << 96 G4ProcessType type)
93 : G4VDiscreteProcess(processName, ptype) << 97 : G4VDiscreteProcess(processName, type)
94 { 98 {
95 Initialise(); << 99 if ( verboseLevel > 0) {
>> 100 G4cout << GetProcessName() << " is created " << G4endl;
>> 101 }
96 102
97 if(verboseLevel > 0) << 103 SetProcessSubType(fOpBoundary);
98 { <<
99 G4cout << GetProcessName() << " is created <<
100 } <<
101 SetProcessSubType(fOpBoundary); <<
102 104
103 fStatus = Undefined; << 105 theStatus = Undefined;
104 fModel = glisur; << 106 theModel = glisur;
105 fFinish = polished; << 107 theFinish = polished;
106 fReflectivity = 1.; << 108 theReflectivity = 1.;
107 fEfficiency = 0.; << 109 theEfficiency = 0.;
108 fTransmittance = 0.; << 110 theTransmittance = 0.;
109 fSurfaceRoughness = 0.; <<
110 fProb_sl = 0.; <<
111 fProb_ss = 0.; <<
112 fProb_bs = 0.; <<
113 <<
114 fRealRIndexMPV = nullptr; <<
115 fImagRIndexMPV = nullptr; <<
116 fMaterial1 = nullptr; <<
117 fMaterial2 = nullptr; <<
118 fOpticalSurface = nullptr; <<
119 fCarTolerance = G4GeometryTolerance::GetIn <<
120 <<
121 f_iTE = f_iTM = 0; <<
122 fPhotonMomentum = 0.; <<
123 fRindex1 = fRindex2 = 1.; <<
124 fSint1 = 0.; <<
125 fDichroicVector = nullptr; <<
126 } <<
127 111
128 //....oooOO0OOooo........oooOO0OOooo........oo << 112 prob_sl = 0.;
129 G4OpBoundaryProcess::~G4OpBoundaryProcess() = << 113 prob_ss = 0.;
>> 114 prob_bs = 0.;
130 115
131 //....oooOO0OOooo........oooOO0OOooo........oo << 116 PropertyPointer = NULL;
132 void G4OpBoundaryProcess::PreparePhysicsTable( << 117 PropertyPointer1 = NULL;
133 { << 118 PropertyPointer2 = NULL;
134 Initialise(); <<
135 } <<
136 119
137 //....oooOO0OOooo........oooOO0OOooo........oo << 120 kCarTolerance = G4GeometryTolerance::GetInstance()
138 void G4OpBoundaryProcess::Initialise() << 121 ->GetSurfaceTolerance();
139 { << 122
140 G4OpticalParameters* params = G4OpticalParam << 123 iTE = iTM = 0;
141 SetInvokeSD(params->GetBoundaryInvokeSD()); << 124 thePhotonMomentum = 0.;
142 SetVerboseLevel(params->GetBoundaryVerboseLe << 125 Rindex1 = Rindex2 = cost1 = cost2 = sint1 = sint2 = 0.;
143 } 126 }
144 127
145 //....oooOO0OOooo........oooOO0OOooo........oo << 128 // G4OpBoundaryProcess::G4OpBoundaryProcess(const G4OpBoundaryProcess &right)
146 G4VParticleChange* G4OpBoundaryProcess::PostSt << 129 // {
147 << 130 // }
>> 131
>> 132 ////////////////
>> 133 // Destructors
>> 134 ////////////////
>> 135
>> 136 G4OpBoundaryProcess::~G4OpBoundaryProcess(){}
>> 137
>> 138 ////////////
>> 139 // Methods
>> 140 ////////////
>> 141
>> 142 // PostStepDoIt
>> 143 // ------------
>> 144 //
>> 145 G4VParticleChange*
>> 146 G4OpBoundaryProcess::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
148 { 147 {
149 fStatus = Undefined; << 148 theStatus = Undefined;
150 aParticleChange.Initialize(aTrack); <<
151 aParticleChange.ProposeVelocity(aTrack.GetVe <<
152 <<
153 // Get hyperStep from G4ParallelWorldProces <<
154 // NOTE: PostSetpDoIt of this process to be <<
155 // G4ParallelWorldProcess! <<
156 const G4Step* pStep = &aStep; <<
157 const G4Step* hStep = G4ParallelWorldProcess <<
158 if(hStep != nullptr) <<
159 pStep = hStep; <<
160 <<
161 if(pStep->GetPostStepPoint()->GetStepStatus( <<
162 { <<
163 fMaterial1 = pStep->GetPreStepPoint()->Get <<
164 fMaterial2 = pStep->GetPostStepPoint()->Ge <<
165 } <<
166 else <<
167 { <<
168 fStatus = NotAtBoundary; <<
169 if(verboseLevel > 1) <<
170 BoundaryProcessVerbose(); <<
171 return G4VDiscreteProcess::PostStepDoIt(aT <<
172 } <<
173 149
174 G4VPhysicalVolume* thePrePV = pStep->GetPre << 150 aParticleChange.Initialize(aTrack);
175 G4VPhysicalVolume* thePostPV = pStep->GetPos <<
176 151
177 if(verboseLevel > 1) << 152 G4StepPoint* pPreStepPoint = aStep.GetPreStepPoint();
178 { << 153 G4StepPoint* pPostStepPoint = aStep.GetPostStepPoint();
179 G4cout << " Photon at Boundary! " << G4end <<
180 if(thePrePV != nullptr) <<
181 G4cout << " thePrePV: " << thePrePV->Ge <<
182 if(thePostPV != nullptr) <<
183 G4cout << " thePostPV: " << thePostPV->G <<
184 } <<
185 154
186 G4double stepLength = aTrack.GetStepLength() << 155 if ( verboseLevel > 0 ) {
187 if(stepLength <= fCarTolerance) << 156 G4cout << " Photon at Boundary! " << G4endl;
188 { << 157 G4VPhysicalVolume* thePrePV = pPreStepPoint->GetPhysicalVolume();
189 fStatus = StepTooSmall; << 158 G4VPhysicalVolume* thePostPV = pPostStepPoint->GetPhysicalVolume();
190 if(verboseLevel > 1) << 159 if (thePrePV) G4cout << " thePrePV: " << thePrePV->GetName() << G4endl;
191 BoundaryProcessVerbose(); << 160 if (thePostPV) G4cout << " thePostPV: " << thePostPV->GetName() << G4endl;
192 << 161 }
193 G4MaterialPropertyVector* groupvel = nullp <<
194 G4MaterialPropertiesTable* aMPT = fMateria <<
195 if(aMPT != nullptr) <<
196 { <<
197 groupvel = aMPT->GetProperty(kGROUPVEL); <<
198 } <<
199 <<
200 if(groupvel != nullptr) <<
201 { <<
202 aParticleChange.ProposeVelocity( <<
203 groupvel->Value(fPhotonMomentum, idx_g <<
204 } <<
205 return G4VDiscreteProcess::PostStepDoIt(aT <<
206 } <<
207 else if (stepLength <= 10.*fCarTolerance && <<
208 { // see bug 2510 <<
209 ++fNumSmallStepWarnings; <<
210 if(verboseLevel > 0) <<
211 { <<
212 G4ExceptionDescription ed; <<
213 ed << "G4OpBoundaryProcess: " <<
214 << "Opticalphoton step length: " << s <<
215 << "This is larger than the threshold <<
216 "to set status StepTooSmall." << G <<
217 << "Boundary scattering may be incorr <<
218 if(fNumSmallStepWarnings == 10) <<
219 { <<
220 ed << G4endl << "*** Step size warning <<
221 } <<
222 G4Exception("G4OpBoundaryProcess", "OpBo <<
223 } <<
224 } <<
225 162
226 const G4DynamicParticle* aParticle = aTrack. << 163 if (pPostStepPoint->GetStepStatus() != fGeomBoundary){
>> 164 theStatus = NotAtBoundary;
>> 165 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 166 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 167 }
>> 168 if (aTrack.GetStepLength()<=kCarTolerance/2){
>> 169 theStatus = StepTooSmall;
>> 170 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 171 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 172 }
227 173
228 fPhotonMomentum = aParticle->GetTotalMoment << 174 Material1 = pPreStepPoint -> GetMaterial();
229 fOldMomentum = aParticle->GetMomentumDir << 175 Material2 = pPostStepPoint -> GetMaterial();
230 fOldPolarization = aParticle->GetPolarizatio <<
231 <<
232 if(verboseLevel > 1) <<
233 { <<
234 G4cout << " Old Momentum Direction: " << f <<
235 << " Old Polarization: " << f <<
236 } <<
237 176
238 G4ThreeVector theGlobalPoint = pStep->GetPos << 177 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
239 G4bool valid; <<
240 178
241 // ID of Navigator which limits step << 179 thePhotonMomentum = aParticle->GetTotalMomentum();
242 G4int hNavId = G4ParallelWorldProcess::GetHy << 180 OldMomentum = aParticle->GetMomentumDirection();
243 auto iNav = G4TransportationManager::GetT << 181 OldPolarization = aParticle->GetPolarization();
244 ->GetActiveNavigatorsIterator( <<
245 fGlobalNormal = (iNav[hNavId])->GetGlobalExi <<
246 <<
247 if(valid) <<
248 { <<
249 fGlobalNormal = -fGlobalNormal; <<
250 } <<
251 else <<
252 { <<
253 G4ExceptionDescription ed; <<
254 ed << " G4OpBoundaryProcess/PostStepDoIt() <<
255 << " The Navigator reports that it retu <<
256 G4Exception( <<
257 "G4OpBoundaryProcess::PostStepDoIt", "Op <<
258 "Invalid Surface Normal - Geometry must <<
259 } <<
260 182
261 if(fOldMomentum * fGlobalNormal > 0.0) << 183 if ( verboseLevel > 0 ) {
262 { << 184 G4cout << " Old Momentum Direction: " << OldMomentum << G4endl;
263 #ifdef G4OPTICAL_DEBUG << 185 G4cout << " Old Polarization: " << OldPolarization << G4endl;
264 G4ExceptionDescription ed; << 186 }
265 ed << " G4OpBoundaryProcess/PostStepDoIt() <<
266 "wrong direction. " <<
267 << G4endl <<
268 << " The momentum of the photon arriv <<
269 << " must exit the volume cross in th <<
270 << " So it MUST have dot < 0 with the <<
271 "volume (globalNormal)." <<
272 << G4endl << " >> The dot product of <<
273 << fOldMomentum * fGlobalNormal << G4en <<
274 << " Old Momentum (during step) <<
275 << " Global Normal (Exiting New Vol <<
276 << G4endl; <<
277 G4Exception("G4OpBoundaryProcess::PostStep <<
278 EventMustBeAborted, // Or Jus <<
279 // repeat <<
280 ed, <<
281 "Invalid Surface Normal - Geom <<
282 "normal pointing in the right <<
283 #else <<
284 fGlobalNormal = -fGlobalNormal; <<
285 #endif <<
286 } <<
287 187
288 G4MaterialPropertyVector* rIndexMPV = nullpt << 188 G4ThreeVector theGlobalPoint = pPostStepPoint->GetPosition();
289 G4MaterialPropertiesTable* MPT = fMaterial1- <<
290 if(MPT != nullptr) <<
291 { <<
292 rIndexMPV = MPT->GetProperty(kRINDEX); <<
293 } <<
294 if(rIndexMPV != nullptr) <<
295 { <<
296 fRindex1 = rIndexMPV->Value(fPhotonMomentu <<
297 } <<
298 else <<
299 { <<
300 fStatus = NoRINDEX; <<
301 if(verboseLevel > 1) <<
302 BoundaryProcessVerbose(); <<
303 aParticleChange.ProposeLocalEnergyDeposit( <<
304 aParticleChange.ProposeTrackStatus(fStopAn <<
305 return G4VDiscreteProcess::PostStepDoIt(aT <<
306 } <<
307 189
308 fReflectivity = 1.; << 190 G4Navigator* theNavigator =
309 fEfficiency = 0.; << 191 G4TransportationManager::GetTransportationManager()->
310 fTransmittance = 0.; << 192 GetNavigatorForTracking();
311 fSurfaceRoughness = 0.; <<
312 fModel = glisur; <<
313 fFinish = polished; <<
314 G4SurfaceType type = dielectric_dielectric; <<
315 <<
316 rIndexMPV = nullptr; <<
317 fOpticalSurface = nullptr; <<
318 <<
319 G4LogicalSurface* surface = <<
320 G4LogicalBorderSurface::GetSurface(thePreP <<
321 if(surface == nullptr) <<
322 { <<
323 if(thePostPV->GetMotherLogical() == thePre <<
324 { <<
325 surface = G4LogicalSkinSurface::GetSurfa <<
326 if(surface == nullptr) <<
327 { <<
328 surface = <<
329 G4LogicalSkinSurface::GetSurface(the <<
330 } <<
331 } <<
332 else <<
333 { <<
334 surface = G4LogicalSkinSurface::GetSurfa <<
335 if(surface == nullptr) <<
336 { <<
337 surface = <<
338 G4LogicalSkinSurface::GetSurface(the <<
339 } <<
340 } <<
341 } <<
342 193
343 if(surface != nullptr) << 194 G4ThreeVector theLocalPoint = theNavigator->
344 { << 195 GetGlobalToLocalTransform().
345 fOpticalSurface = << 196 TransformPoint(theGlobalPoint);
346 dynamic_cast<G4OpticalSurface*>(surface- <<
347 } <<
348 if(fOpticalSurface != nullptr) <<
349 { <<
350 type = fOpticalSurface->GetType(); <<
351 fModel = fOpticalSurface->GetModel(); <<
352 fFinish = fOpticalSurface->GetFinish(); <<
353 <<
354 G4MaterialPropertiesTable* sMPT = <<
355 fOpticalSurface->GetMaterialPropertiesTa <<
356 if(sMPT != nullptr) <<
357 { <<
358 if(fFinish == polishedbackpainted || fFi <<
359 { <<
360 rIndexMPV = sMPT->GetProperty(kRINDEX) <<
361 if(rIndexMPV != nullptr) <<
362 { <<
363 fRindex2 = rIndexMPV->Value(fPhotonM <<
364 } <<
365 else <<
366 { <<
367 fStatus = NoRINDEX; <<
368 if(verboseLevel > 1) <<
369 BoundaryProcessVerbose(); <<
370 aParticleChange.ProposeLocalEnergyDe <<
371 aParticleChange.ProposeTrackStatus(f <<
372 return G4VDiscreteProcess::PostStepD <<
373 } <<
374 } <<
375 197
376 fRealRIndexMPV = sMPT->GetProperty(kREAL << 198 G4ThreeVector theLocalNormal; // Normal points back into volume
377 fImagRIndexMPV = sMPT->GetProperty(kIMAG << 199
378 f_iTE = f_iTM = 1; << 200 G4bool valid;
379 << 201 theLocalNormal = theNavigator->GetLocalExitNormal(&valid);
380 G4MaterialPropertyVector* pp; << 202
381 if((pp = sMPT->GetProperty(kREFLECTIVITY << 203 if (valid) {
382 { << 204 theLocalNormal = -theLocalNormal;
383 fReflectivity = pp->Value(fPhotonMomen <<
384 } <<
385 else if(fRealRIndexMPV && fImagRIndexMPV <<
386 { <<
387 CalculateReflectivity(); <<
388 } <<
389 <<
390 if((pp = sMPT->GetProperty(kEFFICIENCY)) <<
391 { <<
392 fEfficiency = pp->Value(fPhotonMomentu <<
393 } <<
394 if((pp = sMPT->GetProperty(kTRANSMITTANC <<
395 { <<
396 fTransmittance = pp->Value(fPhotonMome <<
397 } <<
398 if(sMPT->ConstPropertyExists(kSURFACEROU <<
399 { <<
400 fSurfaceRoughness = sMPT->GetConstProp <<
401 } <<
402 <<
403 if(fModel == unified) <<
404 { <<
405 fProb_sl = (pp = sMPT->GetProperty(kSP <<
406 ? pp->Value(fPhotonMoment <<
407 : 0.; <<
408 fProb_ss = (pp = sMPT->GetProperty(kSP <<
409 ? pp->Value(fPhotonMoment <<
410 : 0.; <<
411 fProb_bs = (pp = sMPT->GetProperty(kBA <<
412 ? pp->Value(fPhotonMoment <<
413 : 0.; <<
414 } <<
415 } // end of if(sMPT) <<
416 else if(fFinish == polishedbackpainted || <<
417 { <<
418 aParticleChange.ProposeLocalEnergyDeposi <<
419 aParticleChange.ProposeTrackStatus(fStop <<
420 return G4VDiscreteProcess::PostStepDoIt( <<
421 } <<
422 } // end of if(fOpticalSurface) <<
423 <<
424 // DIELECTRIC-DIELECTRIC <<
425 if(type == dielectric_dielectric) <<
426 { <<
427 if(fFinish == polished || fFinish == groun <<
428 { <<
429 if(fMaterial1 == fMaterial2) <<
430 { <<
431 fStatus = SameMaterial; <<
432 if(verboseLevel > 1) <<
433 BoundaryProcessVerbose(); <<
434 return G4VDiscreteProcess::PostStepDoI <<
435 } <<
436 MPT = fMaterial2->GetMaterialPrope <<
437 rIndexMPV = nullptr; <<
438 if(MPT != nullptr) <<
439 { <<
440 rIndexMPV = MPT->GetProperty(kRINDEX); <<
441 } <<
442 if(rIndexMPV != nullptr) <<
443 { <<
444 fRindex2 = rIndexMPV->Value(fPhotonMom <<
445 } <<
446 else <<
447 { <<
448 fStatus = NoRINDEX; <<
449 if(verboseLevel > 1) <<
450 BoundaryProcessVerbose(); <<
451 aParticleChange.ProposeLocalEnergyDepo <<
452 aParticleChange.ProposeTrackStatus(fSt <<
453 return G4VDiscreteProcess::PostStepDoI <<
454 } <<
455 } <<
456 if(fFinish == polishedbackpainted || fFini <<
457 { <<
458 DielectricDielectric(); <<
459 } <<
460 else <<
461 { <<
462 G4double rand = G4UniformRand(); <<
463 if(rand > fReflectivity + fTransmittance <<
464 { <<
465 DoAbsorption(); <<
466 } <<
467 else if(rand > fReflectivity) <<
468 { <<
469 fStatus = Transmission; <<
470 fNewMomentum = fOldMomentum; <<
471 fNewPolarization = fOldPolarization; <<
472 } <<
473 else <<
474 { <<
475 if(fFinish == polishedfrontpainted) <<
476 { <<
477 DoReflection(); <<
478 } <<
479 else if(fFinish == groundfrontpainted) <<
480 { <<
481 fStatus = LambertianReflection; <<
482 DoReflection(); <<
483 } 205 }
484 else << 206 else {
485 { << 207 G4ExceptionDescription ed;
486 DielectricDielectric(); << 208 ed << " G4OpBoundaryProcess/PostStepDoIt(): "
>> 209 << " The Navigator reports that it returned an invalid normal"
>> 210 << G4endl;
>> 211 G4Exception("G4OpBoundaryProcess::PostStepDoIt", "OpBoun01",
>> 212 EventMustBeAborted,ed,
>> 213 "Invalid Surface Normal - Geometry must return valid surface normal");
487 } 214 }
488 } <<
489 } <<
490 } <<
491 else if(type == dielectric_metal) <<
492 { <<
493 DielectricMetal(); <<
494 } <<
495 else if(type == dielectric_LUT) <<
496 { <<
497 DielectricLUT(); <<
498 } <<
499 else if(type == dielectric_LUTDAVIS) <<
500 { <<
501 DielectricLUTDAVIS(); <<
502 } <<
503 else if(type == dielectric_dichroic) <<
504 { <<
505 DielectricDichroic(); <<
506 } <<
507 else if(type == coated) <<
508 { <<
509 CoatedDielectricDielectric(); <<
510 } <<
511 else <<
512 { <<
513 if(fNumBdryTypeWarnings <= 10) <<
514 { <<
515 ++fNumBdryTypeWarnings; <<
516 if(verboseLevel > 0) <<
517 { <<
518 G4ExceptionDescription ed; <<
519 ed << " PostStepDoIt(): Illegal bounda <<
520 if(fNumBdryTypeWarnings == 10) <<
521 { <<
522 ed << "** Boundary type warnings sto <<
523 } <<
524 G4Exception("G4OpBoundaryProcess", "Op <<
525 } <<
526 } <<
527 return G4VDiscreteProcess::PostStepDoIt(aT <<
528 } <<
529 215
530 fNewMomentum = fNewMomentum.unit(); << 216 theGlobalNormal = theNavigator->GetLocalToGlobalTransform().
531 fNewPolarization = fNewPolarization.unit(); << 217 TransformAxis(theLocalNormal);
532 218
533 if(verboseLevel > 1) << 219 if (OldMomentum * theGlobalNormal > 0.0) {
534 { << 220 #ifdef G4DEBUG_OPTICAL
535 G4cout << " New Momentum Direction: " << f << 221 G4cerr << " G4OpBoundaryProcess/PostStepDoIt(): "
536 << " New Polarization: " << f << 222 << " theGlobalNormal points the wrong direction "
537 BoundaryProcessVerbose(); << 223 << G4endl;
538 } << 224 #endif
539 << 225 theGlobalNormal = -theGlobalNormal;
540 aParticleChange.ProposeMomentumDirection(fNe << 226 }
541 aParticleChange.ProposePolarization(fNewPola <<
542 227
543 if(fStatus == FresnelRefraction || fStatus = << 228 G4MaterialPropertiesTable* aMaterialPropertiesTable;
544 { << 229 G4MaterialPropertyVector* Rindex;
545 // not all surface types check that fMater <<
546 G4MaterialPropertiesTable* aMPT = fMateria <<
547 G4MaterialPropertyVector* groupvel = nullp <<
548 if(aMPT != nullptr) <<
549 { <<
550 groupvel = aMPT->GetProperty(kGROUPVEL); <<
551 } <<
552 if(groupvel != nullptr) <<
553 { <<
554 aParticleChange.ProposeVelocity( <<
555 groupvel->Value(fPhotonMomentum, idx_g <<
556 } <<
557 } <<
558 230
559 if(fStatus == Detection && fInvokeSD) << 231 aMaterialPropertiesTable = Material1->GetMaterialPropertiesTable();
560 InvokeSD(pStep); << 232 if (aMaterialPropertiesTable) {
561 return G4VDiscreteProcess::PostStepDoIt(aTra << 233 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
562 } << 234 }
>> 235 else {
>> 236 theStatus = NoRINDEX;
>> 237 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 238 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 239 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 240 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 241 }
>> 242
>> 243 if (Rindex) {
>> 244 Rindex1 = Rindex->Value(thePhotonMomentum);
>> 245 }
>> 246 else {
>> 247 theStatus = NoRINDEX;
>> 248 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 249 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 250 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 251 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 252 }
>> 253
>> 254 theReflectivity = 1.;
>> 255 theEfficiency = 0.;
>> 256 theTransmittance = 0.;
>> 257
>> 258 theModel = glisur;
>> 259 theFinish = polished;
>> 260
>> 261 G4SurfaceType type = dielectric_dielectric;
>> 262
>> 263 Rindex = NULL;
>> 264 OpticalSurface = NULL;
>> 265
>> 266 G4LogicalSurface* Surface = NULL;
>> 267
>> 268 Surface = G4LogicalBorderSurface::GetSurface
>> 269 (pPreStepPoint ->GetPhysicalVolume(),
>> 270 pPostStepPoint->GetPhysicalVolume());
>> 271
>> 272 if (Surface == NULL){
>> 273 G4bool enteredDaughter=(pPostStepPoint->GetPhysicalVolume()
>> 274 ->GetMotherLogical() ==
>> 275 pPreStepPoint->GetPhysicalVolume()
>> 276 ->GetLogicalVolume());
>> 277 if(enteredDaughter){
>> 278 Surface = G4LogicalSkinSurface::GetSurface
>> 279 (pPostStepPoint->GetPhysicalVolume()->
>> 280 GetLogicalVolume());
>> 281 if(Surface == NULL)
>> 282 Surface = G4LogicalSkinSurface::GetSurface
>> 283 (pPreStepPoint->GetPhysicalVolume()->
>> 284 GetLogicalVolume());
>> 285 }
>> 286 else {
>> 287 Surface = G4LogicalSkinSurface::GetSurface
>> 288 (pPreStepPoint->GetPhysicalVolume()->
>> 289 GetLogicalVolume());
>> 290 if(Surface == NULL)
>> 291 Surface = G4LogicalSkinSurface::GetSurface
>> 292 (pPostStepPoint->GetPhysicalVolume()->
>> 293 GetLogicalVolume());
>> 294 }
>> 295 }
>> 296
>> 297 if (Surface) OpticalSurface =
>> 298 dynamic_cast <G4OpticalSurface*> (Surface->GetSurfaceProperty());
>> 299
>> 300 if (OpticalSurface) {
>> 301
>> 302 type = OpticalSurface->GetType();
>> 303 theModel = OpticalSurface->GetModel();
>> 304 theFinish = OpticalSurface->GetFinish();
>> 305
>> 306 aMaterialPropertiesTable = OpticalSurface->
>> 307 GetMaterialPropertiesTable();
>> 308
>> 309 if (aMaterialPropertiesTable) {
>> 310
>> 311 if (theFinish == polishedbackpainted ||
>> 312 theFinish == groundbackpainted ) {
>> 313 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
>> 314 if (Rindex) {
>> 315 Rindex2 = Rindex->Value(thePhotonMomentum);
>> 316 }
>> 317 else {
>> 318 theStatus = NoRINDEX;
>> 319 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 320 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 321 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 322 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 323 }
>> 324 }
>> 325
>> 326 PropertyPointer =
>> 327 aMaterialPropertiesTable->GetProperty("REFLECTIVITY");
>> 328 PropertyPointer1 =
>> 329 aMaterialPropertiesTable->GetProperty("REALRINDEX");
>> 330 PropertyPointer2 =
>> 331 aMaterialPropertiesTable->GetProperty("IMAGINARYRINDEX");
>> 332
>> 333 iTE = 1;
>> 334 iTM = 1;
>> 335
>> 336 if (PropertyPointer) {
>> 337
>> 338 theReflectivity =
>> 339 PropertyPointer->Value(thePhotonMomentum);
>> 340
>> 341 } else if (PropertyPointer1 && PropertyPointer2) {
>> 342
>> 343 CalculateReflectivity();
>> 344
>> 345 }
>> 346
>> 347 PropertyPointer =
>> 348 aMaterialPropertiesTable->GetProperty("EFFICIENCY");
>> 349 if (PropertyPointer) {
>> 350 theEfficiency =
>> 351 PropertyPointer->Value(thePhotonMomentum);
>> 352 }
>> 353
>> 354 PropertyPointer =
>> 355 aMaterialPropertiesTable->GetProperty("TRANSMITTANCE");
>> 356 if (PropertyPointer) {
>> 357 theTransmittance =
>> 358 PropertyPointer->Value(thePhotonMomentum);
>> 359 }
>> 360
>> 361 if ( theModel == unified ) {
>> 362 PropertyPointer =
>> 363 aMaterialPropertiesTable->GetProperty("SPECULARLOBECONSTANT");
>> 364 if (PropertyPointer) {
>> 365 prob_sl =
>> 366 PropertyPointer->Value(thePhotonMomentum);
>> 367 } else {
>> 368 prob_sl = 0.0;
>> 369 }
>> 370
>> 371 PropertyPointer =
>> 372 aMaterialPropertiesTable->GetProperty("SPECULARSPIKECONSTANT");
>> 373 if (PropertyPointer) {
>> 374 prob_ss =
>> 375 PropertyPointer->Value(thePhotonMomentum);
>> 376 } else {
>> 377 prob_ss = 0.0;
>> 378 }
>> 379
>> 380 PropertyPointer =
>> 381 aMaterialPropertiesTable->GetProperty("BACKSCATTERCONSTANT");
>> 382 if (PropertyPointer) {
>> 383 prob_bs =
>> 384 PropertyPointer->Value(thePhotonMomentum);
>> 385 } else {
>> 386 prob_bs = 0.0;
>> 387 }
>> 388 }
>> 389 }
>> 390 else if (theFinish == polishedbackpainted ||
>> 391 theFinish == groundbackpainted ) {
>> 392 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 393 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 394 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 395 }
>> 396 }
>> 397
>> 398 if (type == dielectric_dielectric ) {
>> 399 if (theFinish == polished || theFinish == ground ) {
>> 400
>> 401 if (Material1 == Material2){
>> 402 theStatus = SameMaterial;
>> 403 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 404 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 405 }
>> 406 aMaterialPropertiesTable =
>> 407 Material2->GetMaterialPropertiesTable();
>> 408 if (aMaterialPropertiesTable)
>> 409 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
>> 410 if (Rindex) {
>> 411 Rindex2 = Rindex->Value(thePhotonMomentum);
>> 412 }
>> 413 else {
>> 414 theStatus = NoRINDEX;
>> 415 if ( verboseLevel > 0) BoundaryProcessVerbose();
>> 416 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 417 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 418 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 419 }
>> 420 }
>> 421 }
>> 422
>> 423 if (type == dielectric_metal) {
>> 424
>> 425 DielectricMetal();
>> 426
>> 427 // Uncomment the following lines if you wish to have
>> 428 // Transmission instead of Absorption
>> 429 // if (theStatus == Absorption) {
>> 430 // return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 431 // }
>> 432
>> 433 }
>> 434 else if (type == dielectric_LUT) {
>> 435
>> 436 DielectricLUT();
>> 437
>> 438 }
>> 439 else if (type == dielectric_dielectric) {
>> 440
>> 441 if ( theFinish == polishedbackpainted ||
>> 442 theFinish == groundbackpainted ) {
>> 443 DielectricDielectric();
>> 444 }
>> 445 else {
>> 446 if ( !G4BooleanRand(theReflectivity) ) {
>> 447 DoAbsorption();
>> 448 }
>> 449 else {
>> 450 if ( theFinish == polishedfrontpainted ) {
>> 451 DoReflection();
>> 452 }
>> 453 else if ( theFinish == groundfrontpainted ) {
>> 454 theStatus = LambertianReflection;
>> 455 DoReflection();
>> 456 }
>> 457 else {
>> 458 DielectricDielectric();
>> 459 }
>> 460 }
>> 461 }
>> 462 }
>> 463 else {
563 464
564 //....oooOO0OOooo........oooOO0OOooo........oo << 465 G4cerr << " Error: G4BoundaryProcess: illegal boundary type " << G4endl;
565 void G4OpBoundaryProcess::BoundaryProcessVerbo << 466 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
566 { <<
567 G4cout << " *** "; <<
568 if(fStatus == Undefined) <<
569 G4cout << "Undefined"; <<
570 else if(fStatus == Transmission) <<
571 G4cout << "Transmission"; <<
572 else if(fStatus == FresnelRefraction) <<
573 G4cout << "FresnelRefraction"; <<
574 else if(fStatus == FresnelReflection) <<
575 G4cout << "FresnelReflection"; <<
576 else if(fStatus == TotalInternalReflection) <<
577 G4cout << "TotalInternalReflection"; <<
578 else if(fStatus == LambertianReflection) <<
579 G4cout << "LambertianReflection"; <<
580 else if(fStatus == LobeReflection) <<
581 G4cout << "LobeReflection"; <<
582 else if(fStatus == SpikeReflection) <<
583 G4cout << "SpikeReflection"; <<
584 else if(fStatus == BackScattering) <<
585 G4cout << "BackScattering"; <<
586 else if(fStatus == PolishedLumirrorAirReflec <<
587 G4cout << "PolishedLumirrorAirReflection"; <<
588 else if(fStatus == PolishedLumirrorGlueRefle <<
589 G4cout << "PolishedLumirrorGlueReflection" <<
590 else if(fStatus == PolishedAirReflection) <<
591 G4cout << "PolishedAirReflection"; <<
592 else if(fStatus == PolishedTeflonAirReflecti <<
593 G4cout << "PolishedTeflonAirReflection"; <<
594 else if(fStatus == PolishedTiOAirReflection) <<
595 G4cout << "PolishedTiOAirReflection"; <<
596 else if(fStatus == PolishedTyvekAirReflectio <<
597 G4cout << "PolishedTyvekAirReflection"; <<
598 else if(fStatus == PolishedVM2000AirReflecti <<
599 G4cout << "PolishedVM2000AirReflection"; <<
600 else if(fStatus == PolishedVM2000GlueReflect <<
601 G4cout << "PolishedVM2000GlueReflection"; <<
602 else if(fStatus == EtchedLumirrorAirReflecti <<
603 G4cout << "EtchedLumirrorAirReflection"; <<
604 else if(fStatus == EtchedLumirrorGlueReflect <<
605 G4cout << "EtchedLumirrorGlueReflection"; <<
606 else if(fStatus == EtchedAirReflection) <<
607 G4cout << "EtchedAirReflection"; <<
608 else if(fStatus == EtchedTeflonAirReflection <<
609 G4cout << "EtchedTeflonAirReflection"; <<
610 else if(fStatus == EtchedTiOAirReflection) <<
611 G4cout << "EtchedTiOAirReflection"; <<
612 else if(fStatus == EtchedTyvekAirReflection) <<
613 G4cout << "EtchedTyvekAirReflection"; <<
614 else if(fStatus == EtchedVM2000AirReflection <<
615 G4cout << "EtchedVM2000AirReflection"; <<
616 else if(fStatus == EtchedVM2000GlueReflectio <<
617 G4cout << "EtchedVM2000GlueReflection"; <<
618 else if(fStatus == GroundLumirrorAirReflecti <<
619 G4cout << "GroundLumirrorAirReflection"; <<
620 else if(fStatus == GroundLumirrorGlueReflect <<
621 G4cout << "GroundLumirrorGlueReflection"; <<
622 else if(fStatus == GroundAirReflection) <<
623 G4cout << "GroundAirReflection"; <<
624 else if(fStatus == GroundTeflonAirReflection <<
625 G4cout << "GroundTeflonAirReflection"; <<
626 else if(fStatus == GroundTiOAirReflection) <<
627 G4cout << "GroundTiOAirReflection"; <<
628 else if(fStatus == GroundTyvekAirReflection) <<
629 G4cout << "GroundTyvekAirReflection"; <<
630 else if(fStatus == GroundVM2000AirReflection <<
631 G4cout << "GroundVM2000AirReflection"; <<
632 else if(fStatus == GroundVM2000GlueReflectio <<
633 G4cout << "GroundVM2000GlueReflection"; <<
634 else if(fStatus == Absorption) <<
635 G4cout << "Absorption"; <<
636 else if(fStatus == Detection) <<
637 G4cout << "Detection"; <<
638 else if(fStatus == NotAtBoundary) <<
639 G4cout << "NotAtBoundary"; <<
640 else if(fStatus == SameMaterial) <<
641 G4cout << "SameMaterial"; <<
642 else if(fStatus == StepTooSmall) <<
643 G4cout << "StepTooSmall"; <<
644 else if(fStatus == NoRINDEX) <<
645 G4cout << "NoRINDEX"; <<
646 else if(fStatus == Dichroic) <<
647 G4cout << "Dichroic Transmission"; <<
648 else if(fStatus == CoatedDielectricReflectio <<
649 G4cout << "Coated Dielectric Reflection"; <<
650 else if(fStatus == CoatedDielectricRefractio <<
651 G4cout << "Coated Dielectric Refraction"; <<
652 else if(fStatus == CoatedDielectricFrustrate <<
653 G4cout << "Coated Dielectric Frustrated Tr <<
654 467
655 G4cout << " ***" << G4endl; << 468 }
656 } <<
657 469
658 //....oooOO0OOooo........oooOO0OOooo........oo << 470 NewMomentum = NewMomentum.unit();
659 G4ThreeVector G4OpBoundaryProcess::GetFacetNor << 471 NewPolarization = NewPolarization.unit();
660 const G4ThreeVector& momentum, const G4Three <<
661 { <<
662 G4ThreeVector facetNormal; <<
663 if(fModel == unified || fModel == LUT || fMo <<
664 { <<
665 /* This function codes alpha to a random v <<
666 distribution p(alpha) = g(alpha; 0, sigma_ <<
667 for alpha > 0 and alpha < 90, where g(alph <<
668 gaussian distribution with mean 0 and stan <<
669 <<
670 G4double sigma_alpha = 0.0; <<
671 if(fOpticalSurface) <<
672 sigma_alpha = fOpticalSurface->GetSigmaA <<
673 if(sigma_alpha == 0.0) <<
674 { <<
675 return normal; <<
676 } <<
677 <<
678 G4double f_max = std::min(1.0, 4. * sigma_ <<
679 G4double alpha, phi, sinAlpha; <<
680 <<
681 do <<
682 { // Loop checking, 13-Aug-2015, Peter Gu <<
683 do <<
684 { // Loop checking, 13-Aug-2015, Peter <<
685 alpha = G4RandGauss::shoot(0.0, sig <<
686 sinAlpha = std::sin(alpha); <<
687 } while(G4UniformRand() * f_max > sinAlp <<
688 <<
689 phi = G4UniformRand() * twopi; <<
690 facetNormal.set(sinAlpha * std::cos(phi) <<
691 std::cos(alpha)); <<
692 facetNormal.rotateUz(normal); <<
693 } while(momentum * facetNormal >= 0.0); <<
694 } <<
695 else <<
696 { <<
697 G4double polish = 1.0; <<
698 if(fOpticalSurface) <<
699 polish = fOpticalSurface->GetPolish(); <<
700 if(polish < 1.0) <<
701 { <<
702 do <<
703 { // Loop checking, 13-Aug-2015, Peter <<
704 G4ThreeVector smear; <<
705 do <<
706 { // Loop checking, 13-Aug-2015, Pete <<
707 smear.setX(2. * G4UniformRand() - 1. <<
708 smear.setY(2. * G4UniformRand() - 1. <<
709 smear.setZ(2. * G4UniformRand() - 1. <<
710 } while(smear.mag2() > 1.0); <<
711 facetNormal = normal + (1. - polish) * <<
712 } while(momentum * facetNormal >= 0.0); <<
713 facetNormal = facetNormal.unit(); <<
714 } <<
715 else <<
716 { <<
717 facetNormal = normal; <<
718 } <<
719 } <<
720 return facetNormal; <<
721 } <<
722 472
723 //....oooOO0OOooo........oooOO0OOooo........oo << 473 if ( verboseLevel > 0) {
724 void G4OpBoundaryProcess::DielectricMetal() << 474 G4cout << " New Momentum Direction: " << NewMomentum << G4endl;
725 { << 475 G4cout << " New Polarization: " << NewPolarization << G4endl;
726 G4int n = 0; << 476 BoundaryProcessVerbose();
727 G4double rand; <<
728 G4ThreeVector A_trans; <<
729 <<
730 do <<
731 { <<
732 ++n; <<
733 rand = G4UniformRand(); <<
734 if(rand > fReflectivity && n == 1) <<
735 { <<
736 if(rand > fReflectivity + fTransmittance <<
737 { <<
738 DoAbsorption(); <<
739 } <<
740 else <<
741 { <<
742 fStatus = Transmission; <<
743 fNewMomentum = fOldMomentum; <<
744 fNewPolarization = fOldPolarization; <<
745 } <<
746 break; <<
747 } <<
748 else <<
749 { <<
750 if(fRealRIndexMPV && fImagRIndexMPV) <<
751 { <<
752 if(n > 1) <<
753 { <<
754 CalculateReflectivity(); <<
755 if(!G4BooleanRand(fReflectivity)) <<
756 { <<
757 DoAbsorption(); <<
758 break; <<
759 } <<
760 } 477 }
761 } <<
762 if(fModel == glisur || fFinish == polish <<
763 { <<
764 DoReflection(); <<
765 } <<
766 else <<
767 { <<
768 if(n == 1) <<
769 ChooseReflection(); <<
770 if(fStatus == LambertianReflection) <<
771 { <<
772 DoReflection(); <<
773 } <<
774 else if(fStatus == BackScattering) <<
775 { <<
776 fNewMomentum = -fOldMomentum; <<
777 fNewPolarization = -fOldPolarization <<
778 } <<
779 else <<
780 { <<
781 if(fStatus == LobeReflection) <<
782 { <<
783 if(!fRealRIndexMPV || !fImagRIndex <<
784 { <<
785 fFacetNormal = GetFacetNormal(fO <<
786 } <<
787 // else <<
788 // case of complex rindex needs t <<
789 } <<
790 fNewMomentum = <<
791 fOldMomentum - 2. * fOldMomentum * <<
792 478
793 if(f_iTE > 0 && f_iTM > 0) << 479 aParticleChange.ProposeMomentumDirection(NewMomentum);
794 { << 480 aParticleChange.ProposePolarization(NewPolarization);
795 fNewPolarization = << 481
796 -fOldPolarization + << 482 if ( theStatus == FresnelRefraction ) {
797 (2. * fOldPolarization * fFacetN << 483 G4double finalVelocity = aTrack.CalculateVelocityForOpticalPhoton();
798 } << 484 aParticleChange.ProposeVelocity(finalVelocity);
799 else if(f_iTE > 0) <<
800 { <<
801 A_trans = (fSint1 > 0.0) ? fOldMom <<
802 : fOldPol <<
803 fNewPolarization = -A_trans; <<
804 } <<
805 else if(f_iTM > 0) <<
806 { <<
807 fNewPolarization = <<
808 -fNewMomentum.cross(A_trans).uni <<
809 } <<
810 } 485 }
811 } <<
812 fOldMomentum = fNewMomentum; <<
813 fOldPolarization = fNewPolarization; <<
814 } <<
815 // Loop checking, 13-Aug-2015, Peter Gumpl <<
816 } while(fNewMomentum * fGlobalNormal < 0.0); <<
817 } <<
818 486
819 //....oooOO0OOooo........oooOO0OOooo........oo << 487 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
820 void G4OpBoundaryProcess::DielectricLUT() <<
821 { <<
822 G4int thetaIndex, phiIndex; <<
823 G4double angularDistVal, thetaRad, phiRad; <<
824 G4ThreeVector perpVectorTheta, perpVectorPhi <<
825 <<
826 fStatus = G4OpBoundaryProcessStatus( <<
827 G4int(fFinish) + (G4int(NoRINDEX) - G4int( <<
828 <<
829 G4int thetaIndexMax = fOpticalSurface->GetTh <<
830 G4int phiIndexMax = fOpticalSurface->GetPh <<
831 <<
832 G4double rand; <<
833 <<
834 do <<
835 { <<
836 rand = G4UniformRand(); <<
837 if(rand > fReflectivity) <<
838 { <<
839 if(rand > fReflectivity + fTransmittance <<
840 { <<
841 DoAbsorption(); <<
842 } <<
843 else <<
844 { <<
845 fStatus = Transmission; <<
846 fNewMomentum = fOldMomentum; <<
847 fNewPolarization = fOldPolarization; <<
848 } <<
849 break; <<
850 } <<
851 else <<
852 { <<
853 // Calculate Angle between Normal and Ph <<
854 G4double anglePhotonToNormal = fOldMomen <<
855 // Round to closest integer: LBNL model <<
856 G4int angleIncident = (G4int)std::lrint( <<
857 <<
858 // Take random angles THETA and PHI, <<
859 // and see if below Probability - if not <<
860 do <<
861 { <<
862 thetaIndex = (G4int)G4RandFlat::shootI <<
863 phiIndex = (G4int)G4RandFlat::shootI <<
864 // Find probability with the new indec <<
865 angularDistVal = fOpticalSurface->GetA <<
866 angleIncident, thetaIndex, phiIndex) <<
867 // Loop checking, 13-Aug-2015, Peter G <<
868 } while(!G4BooleanRand(angularDistVal)); <<
869 <<
870 thetaRad = G4double(-90 + 4 * thetaIndex <<
871 phiRad = G4double(-90 + 5 * phiIndex) <<
872 // Rotate Photon Momentum in Theta, then <<
873 fNewMomentum = -fOldMomentum; <<
874 <<
875 perpVectorTheta = fNewMomentum.cross(fGl <<
876 if(perpVectorTheta.mag() < fCarTolerance <<
877 { <<
878 perpVectorTheta = fNewMomentum.orthogo <<
879 } <<
880 fNewMomentum = <<
881 fNewMomentum.rotate(anglePhotonToNorma <<
882 perpVectorPhi = perpVectorTheta.cross(fN <<
883 fNewMomentum = fNewMomentum.rotate(-phi <<
884 <<
885 // Rotate Polarization too: <<
886 fFacetNormal = (fNewMomentum - fOldM <<
887 fNewPolarization = -fOldPolarization + <<
888 (2. * fOldPolarizatio <<
889 } <<
890 // Loop checking, 13-Aug-2015, Peter Gumpl <<
891 } while(fNewMomentum * fGlobalNormal <= 0.0) <<
892 } 488 }
893 489
894 //....oooOO0OOooo........oooOO0OOooo........oo << 490 void G4OpBoundaryProcess::BoundaryProcessVerbose() const
895 void G4OpBoundaryProcess::DielectricLUTDAVIS() <<
896 { 491 {
897 G4int angindex, random, angleIncident; << 492 if ( theStatus == Undefined )
898 G4double reflectivityValue, elevation, azimu << 493 G4cout << " *** Undefined *** " << G4endl;
899 G4double anglePhotonToNormal; << 494 if ( theStatus == FresnelRefraction )
900 << 495 G4cout << " *** FresnelRefraction *** " << G4endl;
901 G4int lutbin = fOpticalSurface->GetLUTbins( << 496 if ( theStatus == FresnelReflection )
902 G4double rand = G4UniformRand(); << 497 G4cout << " *** FresnelReflection *** " << G4endl;
903 << 498 if ( theStatus == TotalInternalReflection )
904 G4double sinEl; << 499 G4cout << " *** TotalInternalReflection *** " << G4endl;
905 G4ThreeVector u, vNorm, w; << 500 if ( theStatus == LambertianReflection )
906 << 501 G4cout << " *** LambertianReflection *** " << G4endl;
907 do << 502 if ( theStatus == LobeReflection )
908 { << 503 G4cout << " *** LobeReflection *** " << G4endl;
909 anglePhotonToNormal = fOldMomentum.angle(- << 504 if ( theStatus == SpikeReflection )
910 << 505 G4cout << " *** SpikeReflection *** " << G4endl;
911 // Davis model has 90 reflection bins: rou << 506 if ( theStatus == BackScattering )
912 // don't allow angleIncident to be 90 for << 507 G4cout << " *** BackScattering *** " << G4endl;
913 angleIncident = std::min( << 508 if ( theStatus == PolishedLumirrorAirReflection )
914 static_cast<G4int>(std::floor(anglePhoto << 509 G4cout << " *** PolishedLumirrorAirReflection *** " << G4endl;
915 reflectivityValue = fOpticalSurface->GetRe << 510 if ( theStatus == PolishedLumirrorGlueReflection )
916 << 511 G4cout << " *** PolishedLumirrorGlueReflection *** " << G4endl;
917 if(rand > reflectivityValue) << 512 if ( theStatus == PolishedAirReflection )
918 { << 513 G4cout << " *** PolishedAirReflection *** " << G4endl;
919 if(fEfficiency > 0.) << 514 if ( theStatus == PolishedTeflonAirReflection )
920 { << 515 G4cout << " *** PolishedTeflonAirReflection *** " << G4endl;
921 DoAbsorption(); << 516 if ( theStatus == PolishedTiOAirReflection )
922 break; << 517 G4cout << " *** PolishedTiOAirReflection *** " << G4endl;
923 } << 518 if ( theStatus == PolishedTyvekAirReflection )
924 else << 519 G4cout << " *** PolishedTyvekAirReflection *** " << G4endl;
925 { << 520 if ( theStatus == PolishedVM2000AirReflection )
926 fStatus = Transmission; << 521 G4cout << " *** PolishedVM2000AirReflection *** " << G4endl;
927 << 522 if ( theStatus == PolishedVM2000GlueReflection )
928 if(angleIncident <= 0.01) << 523 G4cout << " *** PolishedVM2000GlueReflection *** " << G4endl;
929 { << 524 if ( theStatus == EtchedLumirrorAirReflection )
930 fNewMomentum = fOldMomentum; << 525 G4cout << " *** EtchedLumirrorAirReflection *** " << G4endl;
931 break; << 526 if ( theStatus == EtchedLumirrorGlueReflection )
932 } << 527 G4cout << " *** EtchedLumirrorGlueReflection *** " << G4endl;
933 << 528 if ( theStatus == EtchedAirReflection )
934 do << 529 G4cout << " *** EtchedAirReflection *** " << G4endl;
935 { << 530 if ( theStatus == EtchedTeflonAirReflection )
936 random = (G4int)G4RandFlat::shootInt << 531 G4cout << " *** EtchedTeflonAirReflection *** " << G4endl;
937 angindex = << 532 if ( theStatus == EtchedTiOAirReflection )
938 (((random * 2) - 1)) + angleIncide << 533 G4cout << " *** EtchedTiOAirReflection *** " << G4endl;
939 << 534 if ( theStatus == EtchedTyvekAirReflection )
940 azimuth = << 535 G4cout << " *** EtchedTyvekAirReflection *** " << G4endl;
941 fOpticalSurface->GetAngularDistrib << 536 if ( theStatus == EtchedVM2000AirReflection )
942 elevation = fOpticalSurface->GetAngu << 537 G4cout << " *** EtchedVM2000AirReflection *** " << G4endl;
943 } while(elevation == 0. && azimuth == << 538 if ( theStatus == EtchedVM2000GlueReflection )
944 << 539 G4cout << " *** EtchedVM2000GlueReflection *** " << G4endl;
945 sinEl = std::sin(elevation); << 540 if ( theStatus == GroundLumirrorAirReflection )
946 vNorm = (fGlobalNormal.cross(fOldMomen << 541 G4cout << " *** GroundLumirrorAirReflection *** " << G4endl;
947 u = vNorm.cross(fGlobalNormal) * ( << 542 if ( theStatus == GroundLumirrorGlueReflection )
948 vNorm *= (sinEl * std::sin(azimuth)); << 543 G4cout << " *** GroundLumirrorGlueReflection *** " << G4endl;
949 // fGlobalNormal shouldn't be modified << 544 if ( theStatus == GroundAirReflection )
950 w = (fGlobalNormal *= std:: << 545 G4cout << " *** GroundAirReflection *** " << G4endl;
951 fNewMomentum = u + vNorm + w; << 546 if ( theStatus == GroundTeflonAirReflection )
952 << 547 G4cout << " *** GroundTeflonAirReflection *** " << G4endl;
953 // Rotate Polarization too: << 548 if ( theStatus == GroundTiOAirReflection )
954 fFacetNormal = (fNewMomentum - fOl << 549 G4cout << " *** GroundTiOAirReflection *** " << G4endl;
955 fNewPolarization = -fOldPolarization + << 550 if ( theStatus == GroundTyvekAirReflection )
956 << 551 G4cout << " *** GroundTyvekAirReflection *** " << G4endl;
957 } << 552 if ( theStatus == GroundVM2000AirReflection )
958 } << 553 G4cout << " *** GroundVM2000AirReflection *** " << G4endl;
959 else << 554 if ( theStatus == GroundVM2000GlueReflection )
960 { << 555 G4cout << " *** GroundVM2000GlueReflection *** " << G4endl;
961 fStatus = LobeReflection; << 556 if ( theStatus == Absorption )
962 << 557 G4cout << " *** Absorption *** " << G4endl;
963 if(angleIncident == 0) << 558 if ( theStatus == Detection )
964 { << 559 G4cout << " *** Detection *** " << G4endl;
965 fNewMomentum = -fOldMomentum; << 560 if ( theStatus == NotAtBoundary )
966 break; << 561 G4cout << " *** NotAtBoundary *** " << G4endl;
967 } << 562 if ( theStatus == SameMaterial )
968 << 563 G4cout << " *** SameMaterial *** " << G4endl;
969 do << 564 if ( theStatus == StepTooSmall )
970 { << 565 G4cout << " *** StepTooSmall *** " << G4endl;
971 random = (G4int)G4RandFlat::shootInt << 566 if ( theStatus == NoRINDEX )
972 angindex = (((random * 2) - 1)) + (ang << 567 G4cout << " *** NoRINDEX *** " << G4endl;
973 <<
974 azimuth = fOpticalSurface->GetAngularD <<
975 elevation = fOpticalSurface->GetAngula <<
976 } while(elevation == 0. && azimuth == 0. <<
977 <<
978 sinEl = std::sin(elevation); <<
979 vNorm = (fGlobalNormal.cross(fOldMomentu <<
980 u = vNorm.cross(fGlobalNormal) * (si <<
981 vNorm *= (sinEl * std::sin(azimuth)); <<
982 // fGlobalNormal shouldn't be modified h <<
983 w = (fGlobalNormal *= std::cos(elevation <<
984 <<
985 fNewMomentum = u + vNorm + w; <<
986 <<
987 // Rotate Polarization too: (needs revis <<
988 fNewPolarization = fOldPolarization; <<
989 } <<
990 } while(fNewMomentum * fGlobalNormal <= 0.0) <<
991 } 568 }
992 569
993 //....oooOO0OOooo........oooOO0OOooo........oo << 570 G4ThreeVector
994 void G4OpBoundaryProcess::DielectricDichroic() << 571 G4OpBoundaryProcess::GetFacetNormal(const G4ThreeVector& Momentum,
>> 572 const G4ThreeVector& Normal ) const
995 { 573 {
996 // Calculate Angle between Normal and Photon << 574 G4ThreeVector FacetNormal;
997 G4double anglePhotonToNormal = fOldMomentum. <<
998 575
999 // Round it to closest integer << 576 if (theModel == unified || theModel == LUT) {
1000 G4double angleIncident = std::floor(180. / <<
1001 577
1002 if(!fDichroicVector) << 578 /* This function code alpha to a random value taken from the
1003 { << 579 distribution p(alpha) = g(alpha; 0, sigma_alpha)*std::sin(alpha),
1004 if(fOpticalSurface) << 580 for alpha > 0 and alpha < 90, where g(alpha; 0, sigma_alpha)
1005 fDichroicVector = fOpticalSurface->GetD << 581 is a gaussian distribution with mean 0 and standard deviation
1006 } << 582 sigma_alpha. */
1007 << 583
1008 if(fDichroicVector) << 584 G4double alpha;
1009 { << 585
1010 G4double wavelength = h_Planck * c_light << 586 G4double sigma_alpha = 0.0;
1011 fTransmittance = fDichroicVector->Va << 587 if (OpticalSurface) sigma_alpha = OpticalSurface->GetSigmaAlpha();
1012 i << 588
1013 perCent; << 589 G4double f_max = std::min(1.0,4.*sigma_alpha);
1014 // G4cout << "wavelength: " << std::flo << 590
1015 // << "nm" << << 591 do {
1016 // G4cout << "Incident angle: " << angl << 592 do {
1017 // G4cout << "Transmittance: " << 593 alpha = G4RandGauss::shoot(0.0,sigma_alpha);
1018 // << std::floor(fTransmittance/ << 594 } while (G4UniformRand()*f_max > std::sin(alpha) || alpha >= halfpi );
1019 } << 595
1020 else << 596 G4double phi = G4UniformRand()*twopi;
1021 { << 597
1022 G4ExceptionDescription ed; << 598 G4double SinAlpha = std::sin(alpha);
1023 ed << " G4OpBoundaryProcess/DielectricDic << 599 G4double CosAlpha = std::cos(alpha);
1024 << " The dichroic surface has no G4Phy << 600 G4double SinPhi = std::sin(phi);
1025 G4Exception("G4OpBoundaryProcess::Dielect << 601 G4double CosPhi = std::cos(phi);
1026 FatalException, ed, << 602
1027 "A dichroic surface must have << 603 G4double unit_x = SinAlpha * CosPhi;
1028 } << 604 G4double unit_y = SinAlpha * SinPhi;
1029 << 605 G4double unit_z = CosAlpha;
1030 if(!G4BooleanRand(fTransmittance)) << 606
1031 { // Not transmitted, so reflect << 607 FacetNormal.setX(unit_x);
1032 if(fModel == glisur || fFinish == polishe << 608 FacetNormal.setY(unit_y);
1033 { << 609 FacetNormal.setZ(unit_z);
1034 DoReflection(); << 610
1035 } << 611 G4ThreeVector tmpNormal = Normal;
1036 else << 612
1037 { << 613 FacetNormal.rotateUz(tmpNormal);
1038 ChooseReflection(); << 614 } while (Momentum * FacetNormal >= 0.0);
1039 if(fStatus == LambertianReflection) << 615 }
1040 { << 616 else {
1041 DoReflection(); << 617
1042 } << 618 G4double polish = 1.0;
1043 else if(fStatus == BackScattering) << 619 if (OpticalSurface) polish = OpticalSurface->GetPolish();
1044 { << 620
1045 fNewMomentum = -fOldMomentum; << 621 if (polish < 1.0) {
1046 fNewPolarization = -fOldPolarization; << 622 do {
1047 } << 623 G4ThreeVector smear;
1048 else << 624 do {
1049 { << 625 smear.setX(2.*G4UniformRand()-1.0);
1050 G4double PdotN, EdotN; << 626 smear.setY(2.*G4UniformRand()-1.0);
1051 do << 627 smear.setZ(2.*G4UniformRand()-1.0);
1052 { << 628 } while (smear.mag()>1.0);
1053 if(fStatus == LobeReflection) << 629 smear = (1.-polish) * smear;
1054 { << 630 FacetNormal = Normal + smear;
1055 fFacetNormal = GetFacetNormal(fOl << 631 } while (Momentum * FacetNormal >= 0.0);
1056 } << 632 FacetNormal = FacetNormal.unit();
1057 PdotN = fOldMomentum * fFace << 633 }
1058 fNewMomentum = fOldMomentum - (2. * << 634 else {
1059 // Loop checking, 13-Aug-2015, Pete << 635 FacetNormal = Normal;
1060 } while(fNewMomentum * fGlobalNormal << 636 }
1061 << 637 }
1062 EdotN = fOldPolarization * << 638 return FacetNormal;
1063 fNewPolarization = -fOldPolarization <<
1064 } <<
1065 } <<
1066 } <<
1067 else <<
1068 { <<
1069 fStatus = Dichroic; <<
1070 fNewMomentum = fOldMomentum; <<
1071 fNewPolarization = fOldPolarization; <<
1072 } <<
1073 } 639 }
1074 640
1075 //....oooOO0OOooo........oooOO0OOooo........o << 641 void G4OpBoundaryProcess::DielectricMetal()
1076 void G4OpBoundaryProcess::DielectricDielectri <<
1077 { 642 {
1078 G4bool inside = false; << 643 G4int n = 0;
1079 G4bool swap = false; <<
1080 644
1081 if(fFinish == polished) << 645 do {
1082 { <<
1083 fFacetNormal = fGlobalNormal; <<
1084 } <<
1085 else <<
1086 { <<
1087 fFacetNormal = GetFacetNormal(fOldMomentu <<
1088 } <<
1089 G4double cost1 = -fOldMomentum * fFacetNorm <<
1090 G4double cost2 = 0.; <<
1091 G4double sint2 = 0.; <<
1092 <<
1093 G4bool surfaceRoughnessCriterionPass = true <<
1094 if(fSurfaceRoughness != 0. && fRindex1 > fR <<
1095 { <<
1096 G4double wavelength = h_Pl <<
1097 G4double surfaceRoughnessCriterion = std: <<
1098 (4. * pi * fSurfaceRoughness * fRindex1 <<
1099 surfaceRoughnessCriterionPass = G4Boolean <<
1100 } <<
1101 646
1102 leap: << 647 n++;
1103 648
1104 G4bool through = false; << 649 if( !G4BooleanRand(theReflectivity) && n == 1 ) {
1105 G4bool done = false; <<
1106 650
1107 G4ThreeVector A_trans, A_paral, E1pp, E1pl; << 651 // Comment out DoAbsorption and uncomment theStatus = Absorption;
1108 G4double E1_perp, E1_parl; << 652 // if you wish to have Transmission instead of Absorption
1109 G4double s1, s2, E2_perp, E2_parl, E2_total << 653
1110 G4double E2_abs, C_parl, C_perp; << 654 DoAbsorption();
1111 G4double alpha; << 655 // theStatus = Absorption;
1112 << 656 break;
1113 do << 657
1114 { << 658 }
1115 if(through) << 659 else {
1116 { << 660
1117 swap = !swap; << 661 if (PropertyPointer1 && PropertyPointer2) {
1118 through = false; << 662 if ( n > 1 ) {
1119 fGlobalNormal = -fGlobalNormal; << 663 CalculateReflectivity();
1120 G4SwapPtr(fMaterial1, fMaterial2); << 664 if ( !G4BooleanRand(theReflectivity) ) {
1121 G4SwapObj(&fRindex1, &fRindex2); << 665 DoAbsorption();
1122 } << 666 break;
1123 << 667 }
1124 if(fFinish == polished) << 668 }
1125 { << 669 }
1126 fFacetNormal = fGlobalNormal; << 670
1127 } << 671 if ( theModel == glisur || theFinish == polished ) {
1128 else << 672
1129 { << 673 DoReflection();
1130 fFacetNormal = GetFacetNormal(fOldMomen << 674
1131 } << 675 } else {
1132 << 676
1133 cost1 = -fOldMomentum * fFacetNormal; << 677 if ( n == 1 ) ChooseReflection();
1134 if(std::abs(cost1) < 1.0 - fCarTolerance) << 678
1135 { << 679 if ( theStatus == LambertianReflection ) {
1136 fSint1 = std::sqrt(1. - cost1 * cost1); << 680 DoReflection();
1137 sint2 = fSint1 * fRindex1 / fRindex2; << 681 }
1138 // this isn't a sine as we might expect << 682 else if ( theStatus == BackScattering ) {
1139 } << 683 NewMomentum = -OldMomentum;
1140 else << 684 NewPolarization = -OldPolarization;
1141 { << 685 }
1142 fSint1 = 0.0; << 686 else {
1143 sint2 = 0.0; << 687
1144 } << 688 if(theStatus==LobeReflection){
1145 << 689 if ( PropertyPointer1 && PropertyPointer2 ){
1146 // TOTAL INTERNAL REFLECTION << 690 } else {
1147 if(sint2 >= 1.0) << 691 theFacetNormal =
1148 { << 692 GetFacetNormal(OldMomentum,theGlobalNormal);
1149 swap = false; << 693 }
1150 << 694 }
1151 fStatus = TotalInternalReflection; << 695
1152 if(!surfaceRoughnessCriterionPass) << 696 G4double PdotN = OldMomentum * theFacetNormal;
1153 fStatus = LambertianReflection; << 697 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
1154 if(fModel == unified && fFinish != poli << 698 G4double EdotN = OldPolarization * theFacetNormal;
1155 ChooseReflection(); << 699
1156 if(fStatus == LambertianReflection) << 700 G4ThreeVector A_trans, A_paral;
1157 { << 701
1158 DoReflection(); << 702 if (sint1 > 0.0 ) {
1159 } << 703 A_trans = OldMomentum.cross(theFacetNormal);
1160 else if(fStatus == BackScattering) << 704 A_trans = A_trans.unit();
1161 { << 705 } else {
1162 fNewMomentum = -fOldMomentum; << 706 A_trans = OldPolarization;
1163 fNewPolarization = -fOldPolarization; << 707 }
1164 } << 708 A_paral = NewMomentum.cross(A_trans);
1165 else << 709 A_paral = A_paral.unit();
1166 { << 710
1167 fNewMomentum = << 711 if(iTE>0&&iTM>0) {
1168 fOldMomentum - 2. * fOldMomentum * << 712 NewPolarization =
1169 fNewPolarization = -fOldPolarization << 713 -OldPolarization + (2.*EdotN)*theFacetNormal;
1170 << 714 } else if (iTE>0) {
1171 } << 715 NewPolarization = -A_trans;
1172 } << 716 } else if (iTM>0) {
1173 // NOT TIR << 717 NewPolarization = -A_paral;
1174 else if(sint2 < 1.0) << 718 }
1175 { << 719
1176 // Calculate amplitude for transmission << 720 }
1177 if(cost1 > 0.0) <<
1178 { <<
1179 cost2 = std::sqrt(1. - sint2 * sint2) <<
1180 } <<
1181 else <<
1182 { <<
1183 cost2 = -std::sqrt(1. - sint2 * sint2 <<
1184 } <<
1185 <<
1186 if(fSint1 > 0.0) <<
1187 { <<
1188 A_trans = (fOldMomentum.cross(fFacetN <<
1189 E1_perp = fOldPolarization * A_trans; <<
1190 E1pp = E1_perp * A_trans; <<
1191 E1pl = fOldPolarization - E1pp; <<
1192 E1_parl = E1pl.mag(); <<
1193 } <<
1194 else <<
1195 { <<
1196 A_trans = fOldPolarization; <<
1197 // Here we Follow Jackson's conventio <<
1198 // component = 1 in case of a ray per <<
1199 E1_perp = 0.0; <<
1200 E1_parl = 1.0; <<
1201 } <<
1202 <<
1203 s1 = fRindex1 * cost1; <<
1204 E2_perp = 2. * s1 * E1_perp / (fRindex <<
1205 E2_parl = 2. * s1 * E1_parl / (fRindex <<
1206 E2_total = E2_perp * E2_perp + E2_parl <<
1207 s2 = fRindex2 * cost2 * E2_total; <<
1208 <<
1209 // D.Sawkey, 24 May 24 <<
1210 // Transmittance has already been taken <<
1211 // For e.g. specular surfaces, the rati <<
1212 // reflection should be given by the ma <<
1213 // TRANSMITTANCE <<
1214 //if(fTransmittance > 0.) <<
1215 // transCoeff = fTransmittance; <<
1216 //else if(cost1 != 0.0) <<
1217 if(cost1 != 0.0) <<
1218 transCoeff = s2 / s1; <<
1219 else <<
1220 transCoeff = 0.0; <<
1221 <<
1222 // NOT TIR: REFLECTION <<
1223 if(!G4BooleanRand(transCoeff)) <<
1224 { <<
1225 swap = false; <<
1226 fStatus = FresnelReflection; <<
1227 <<
1228 if(!surfaceRoughnessCriterionPass) <<
1229 fStatus = LambertianReflection; <<
1230 if(fModel == unified && fFinish != po <<
1231 ChooseReflection(); <<
1232 if(fStatus == LambertianReflection) <<
1233 { <<
1234 DoReflection(); <<
1235 } <<
1236 else if(fStatus == BackScattering) <<
1237 { <<
1238 fNewMomentum = -fOldMomentum; <<
1239 fNewPolarization = -fOldPolarizatio <<
1240 } <<
1241 else <<
1242 { <<
1243 fNewMomentum = <<
1244 fOldMomentum - 2. * fOldMomentum <<
1245 if(fSint1 > 0.0) <<
1246 { // incident ray oblique <<
1247 E2_parl = fRindex2 * E2_parl / f <<
1248 E2_perp = E2_perp - E1_perp; <<
1249 E2_total = E2_perp * E2_perp + E2 <<
1250 A_paral = (fNewMomentum.cross(A_ <<
1251 E2_abs = std::sqrt(E2_total); <<
1252 C_parl = E2_parl / E2_abs; <<
1253 C_perp = E2_perp / E2_abs; <<
1254 721
1255 fNewPolarization = C_parl * A_par << 722 }
1256 } <<
1257 else <<
1258 { // incident ray perpendicular <<
1259 if(fRindex2 > fRindex1) <<
1260 { <<
1261 fNewPolarization = -fOldPolariz <<
1262 } <<
1263 else <<
1264 { <<
1265 fNewPolarization = fOldPolariza <<
1266 } <<
1267 } <<
1268 } <<
1269 } <<
1270 // NOT TIR: TRANSMISSION <<
1271 else <<
1272 { <<
1273 inside = !inside; <<
1274 through = true; <<
1275 fStatus = FresnelRefraction; <<
1276 <<
1277 if(fSint1 > 0.0) <<
1278 { // incident ray oblique <<
1279 alpha = cost1 - cost2 * (fRi <<
1280 fNewMomentum = (fOldMomentum + alph <<
1281 A_paral = (fNewMomentum.cross( <<
1282 E2_abs = std::sqrt(E2_total); <<
1283 C_parl = E2_parl / E2_abs; <<
1284 C_perp = E2_perp / E2_abs; <<
1285 723
1286 fNewPolarization = C_parl * A_paral << 724 OldMomentum = NewMomentum;
1287 } << 725 OldPolarization = NewPolarization;
1288 else <<
1289 { // incident ray perpendicular <<
1290 fNewMomentum = fOldMomentum; <<
1291 fNewPolarization = fOldPolarization <<
1292 } <<
1293 } <<
1294 } <<
1295 726
1296 fOldMomentum = fNewMomentum.unit(); << 727 }
1297 fOldPolarization = fNewPolarization.unit( <<
1298 728
1299 if(fStatus == FresnelRefraction) << 729 } while (NewMomentum * theGlobalNormal < 0.0);
1300 { << 730 }
1301 done = (fNewMomentum * fGlobalNormal <= <<
1302 } <<
1303 else <<
1304 { <<
1305 done = (fNewMomentum * fGlobalNormal >= <<
1306 } <<
1307 // Loop checking, 13-Aug-2015, Peter Gump <<
1308 } while(!done); <<
1309 <<
1310 if(inside && !swap) <<
1311 { <<
1312 if(fFinish == polishedbackpainted || fFin <<
1313 { <<
1314 G4double rand = G4UniformRand(); <<
1315 if(rand > fReflectivity + fTransmittanc <<
1316 { <<
1317 DoAbsorption(); <<
1318 } <<
1319 else if(rand > fReflectivity) <<
1320 { <<
1321 fStatus = Transmission; <<
1322 fNewMomentum = fOldMomentum; <<
1323 fNewPolarization = fOldPolarization; <<
1324 } <<
1325 else <<
1326 { <<
1327 if(fStatus != FresnelRefraction) <<
1328 { <<
1329 fGlobalNormal = -fGlobalNormal; <<
1330 } <<
1331 else <<
1332 { <<
1333 swap = !swap; <<
1334 G4SwapPtr(fMaterial1, fMaterial2); <<
1335 G4SwapObj(&fRindex1, &fRindex2); <<
1336 } <<
1337 if(fFinish == groundbackpainted) <<
1338 fStatus = LambertianReflection; <<
1339 731
1340 DoReflection(); << 732 void G4OpBoundaryProcess::DielectricLUT()
>> 733 {
>> 734 G4int thetaIndex, phiIndex;
>> 735 G4double AngularDistributionValue, thetaRad, phiRad, EdotN;
>> 736 G4ThreeVector PerpendicularVectorTheta, PerpendicularVectorPhi;
>> 737
>> 738 theStatus = G4OpBoundaryProcessStatus(G4int(theFinish) +
>> 739 (G4int(NoRINDEX)-G4int(groundbackpainted)));
>> 740
>> 741 G4int thetaIndexMax = OpticalSurface->GetThetaIndexMax();
>> 742 G4int phiIndexMax = OpticalSurface->GetPhiIndexMax();
>> 743
>> 744 do {
>> 745 if ( !G4BooleanRand(theReflectivity) ) // Not reflected, so Absorbed
>> 746 DoAbsorption();
>> 747 else {
>> 748 // Calculate Angle between Normal and Photon Momentum
>> 749 G4double anglePhotonToNormal =
>> 750 OldMomentum.angle(-theGlobalNormal);
>> 751 // Round it to closest integer
>> 752 G4int angleIncident = G4int(std::floor(180/pi*anglePhotonToNormal+0.5));
>> 753
>> 754 // Take random angles THETA and PHI,
>> 755 // and see if below Probability - if not - Redo
>> 756 do {
>> 757 thetaIndex = CLHEP::RandFlat::shootInt(thetaIndexMax-1);
>> 758 phiIndex = CLHEP::RandFlat::shootInt(phiIndexMax-1);
>> 759 // Find probability with the new indeces from LUT
>> 760 AngularDistributionValue = OpticalSurface ->
>> 761 GetAngularDistributionValue(angleIncident,
>> 762 thetaIndex,
>> 763 phiIndex);
>> 764 } while ( !G4BooleanRand(AngularDistributionValue) );
>> 765
>> 766 thetaRad = (-90 + 4*thetaIndex)*pi/180;
>> 767 phiRad = (-90 + 5*phiIndex)*pi/180;
>> 768 // Rotate Photon Momentum in Theta, then in Phi
>> 769 NewMomentum = -OldMomentum;
>> 770 PerpendicularVectorTheta = NewMomentum.cross(theGlobalNormal);
>> 771 if (PerpendicularVectorTheta.mag() > kCarTolerance ) {
>> 772 PerpendicularVectorPhi =
>> 773 PerpendicularVectorTheta.cross(NewMomentum);
>> 774 }
>> 775 else {
>> 776 PerpendicularVectorTheta = NewMomentum.orthogonal();
>> 777 PerpendicularVectorPhi =
>> 778 PerpendicularVectorTheta.cross(NewMomentum);
>> 779 }
>> 780 NewMomentum =
>> 781 NewMomentum.rotate(anglePhotonToNormal-thetaRad,
>> 782 PerpendicularVectorTheta);
>> 783 NewMomentum = NewMomentum.rotate(-phiRad,PerpendicularVectorPhi);
>> 784 // Rotate Polarization too:
>> 785 theFacetNormal = (NewMomentum - OldMomentum).unit();
>> 786 EdotN = OldPolarization * theFacetNormal;
>> 787 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
>> 788 }
>> 789 } while (NewMomentum * theGlobalNormal <= 0.0);
>> 790 }
1341 791
1342 fGlobalNormal = -fGlobalNormal; << 792 void G4OpBoundaryProcess::DielectricDielectric()
1343 fOldMomentum = fNewMomentum; << 793 {
>> 794 G4bool Inside = false;
>> 795 G4bool Swap = false;
1344 796
1345 goto leap; << 797 leap:
1346 } << 798
1347 } << 799 G4bool Through = false;
1348 } << 800 G4bool Done = false;
>> 801
>> 802 do {
>> 803
>> 804 if (Through) {
>> 805 Swap = !Swap;
>> 806 Through = false;
>> 807 theGlobalNormal = -theGlobalNormal;
>> 808 G4SwapPtr(Material1,Material2);
>> 809 G4SwapObj(&Rindex1,&Rindex2);
>> 810 }
>> 811
>> 812 if ( theFinish == polished ) {
>> 813 theFacetNormal = theGlobalNormal;
>> 814 }
>> 815 else {
>> 816 theFacetNormal =
>> 817 GetFacetNormal(OldMomentum,theGlobalNormal);
>> 818 }
>> 819
>> 820 G4double PdotN = OldMomentum * theFacetNormal;
>> 821 G4double EdotN = OldPolarization * theFacetNormal;
>> 822
>> 823 cost1 = - PdotN;
>> 824 if (std::abs(cost1) < 1.0-kCarTolerance){
>> 825 sint1 = std::sqrt(1.-cost1*cost1);
>> 826 sint2 = sint1*Rindex1/Rindex2; // *** Snell's Law ***
>> 827 }
>> 828 else {
>> 829 sint1 = 0.0;
>> 830 sint2 = 0.0;
>> 831 }
>> 832
>> 833 if (sint2 >= 1.0) {
>> 834
>> 835 // Simulate total internal reflection
>> 836
>> 837 if (Swap) Swap = !Swap;
>> 838
>> 839 theStatus = TotalInternalReflection;
>> 840
>> 841 if ( theModel == unified && theFinish != polished )
>> 842 ChooseReflection();
>> 843
>> 844 if ( theStatus == LambertianReflection ) {
>> 845 DoReflection();
>> 846 }
>> 847 else if ( theStatus == BackScattering ) {
>> 848 NewMomentum = -OldMomentum;
>> 849 NewPolarization = -OldPolarization;
>> 850 }
>> 851 else {
>> 852
>> 853 PdotN = OldMomentum * theFacetNormal;
>> 854 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 855 EdotN = OldPolarization * theFacetNormal;
>> 856 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
>> 857
>> 858 }
>> 859 }
>> 860 else if (sint2 < 1.0) {
>> 861
>> 862 // Calculate amplitude for transmission (Q = P x N)
>> 863
>> 864 if (cost1 > 0.0) {
>> 865 cost2 = std::sqrt(1.-sint2*sint2);
>> 866 }
>> 867 else {
>> 868 cost2 = -std::sqrt(1.-sint2*sint2);
>> 869 }
>> 870
>> 871 G4ThreeVector A_trans, A_paral, E1pp, E1pl;
>> 872 G4double E1_perp, E1_parl;
>> 873
>> 874 if (sint1 > 0.0) {
>> 875 A_trans = OldMomentum.cross(theFacetNormal);
>> 876 A_trans = A_trans.unit();
>> 877 E1_perp = OldPolarization * A_trans;
>> 878 E1pp = E1_perp * A_trans;
>> 879 E1pl = OldPolarization - E1pp;
>> 880 E1_parl = E1pl.mag();
>> 881 }
>> 882 else {
>> 883 A_trans = OldPolarization;
>> 884 // Here we Follow Jackson's conventions and we set the
>> 885 // parallel component = 1 in case of a ray perpendicular
>> 886 // to the surface
>> 887 E1_perp = 0.0;
>> 888 E1_parl = 1.0;
>> 889 }
>> 890
>> 891 G4double s1 = Rindex1*cost1;
>> 892 G4double E2_perp = 2.*s1*E1_perp/(Rindex1*cost1+Rindex2*cost2);
>> 893 G4double E2_parl = 2.*s1*E1_parl/(Rindex2*cost1+Rindex1*cost2);
>> 894 G4double E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 895 G4double s2 = Rindex2*cost2*E2_total;
>> 896
>> 897 G4double TransCoeff;
>> 898
>> 899 if (theTransmittance > 0) TransCoeff = theTransmittance;
>> 900 else if (cost1 != 0.0) TransCoeff = s2/s1;
>> 901 else TransCoeff = 0.0;
>> 902
>> 903 G4double E2_abs, C_parl, C_perp;
>> 904
>> 905 if ( !G4BooleanRand(TransCoeff) ) {
>> 906
>> 907 // Simulate reflection
>> 908
>> 909 if (Swap) Swap = !Swap;
>> 910
>> 911 theStatus = FresnelReflection;
>> 912
>> 913 if ( theModel == unified && theFinish != polished )
>> 914 ChooseReflection();
>> 915
>> 916 if ( theStatus == LambertianReflection ) {
>> 917 DoReflection();
>> 918 }
>> 919 else if ( theStatus == BackScattering ) {
>> 920 NewMomentum = -OldMomentum;
>> 921 NewPolarization = -OldPolarization;
>> 922 }
>> 923 else {
>> 924
>> 925 PdotN = OldMomentum * theFacetNormal;
>> 926 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 927
>> 928 if (sint1 > 0.0) { // incident ray oblique
>> 929
>> 930 E2_parl = Rindex2*E2_parl/Rindex1 - E1_parl;
>> 931 E2_perp = E2_perp - E1_perp;
>> 932 E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 933 A_paral = NewMomentum.cross(A_trans);
>> 934 A_paral = A_paral.unit();
>> 935 E2_abs = std::sqrt(E2_total);
>> 936 C_parl = E2_parl/E2_abs;
>> 937 C_perp = E2_perp/E2_abs;
>> 938
>> 939 NewPolarization = C_parl*A_paral + C_perp*A_trans;
>> 940
>> 941 }
>> 942
>> 943 else { // incident ray perpendicular
>> 944
>> 945 if (Rindex2 > Rindex1) {
>> 946 NewPolarization = - OldPolarization;
>> 947 }
>> 948 else {
>> 949 NewPolarization = OldPolarization;
>> 950 }
>> 951
>> 952 }
>> 953 }
>> 954 }
>> 955 else { // photon gets transmitted
>> 956
>> 957 // Simulate transmission/refraction
>> 958
>> 959 Inside = !Inside;
>> 960 Through = true;
>> 961 theStatus = FresnelRefraction;
>> 962
>> 963 if (sint1 > 0.0) { // incident ray oblique
>> 964
>> 965 G4double alpha = cost1 - cost2*(Rindex2/Rindex1);
>> 966 NewMomentum = OldMomentum + alpha*theFacetNormal;
>> 967 NewMomentum = NewMomentum.unit();
>> 968 PdotN = -cost2;
>> 969 A_paral = NewMomentum.cross(A_trans);
>> 970 A_paral = A_paral.unit();
>> 971 E2_abs = std::sqrt(E2_total);
>> 972 C_parl = E2_parl/E2_abs;
>> 973 C_perp = E2_perp/E2_abs;
>> 974
>> 975 NewPolarization = C_parl*A_paral + C_perp*A_trans;
>> 976
>> 977 }
>> 978 else { // incident ray perpendicular
>> 979
>> 980 NewMomentum = OldMomentum;
>> 981 NewPolarization = OldPolarization;
>> 982
>> 983 }
>> 984 }
>> 985 }
>> 986
>> 987 OldMomentum = NewMomentum.unit();
>> 988 OldPolarization = NewPolarization.unit();
>> 989
>> 990 if (theStatus == FresnelRefraction) {
>> 991 Done = (NewMomentum * theGlobalNormal <= 0.0);
>> 992 }
>> 993 else {
>> 994 Done = (NewMomentum * theGlobalNormal >= 0.0);
>> 995 }
>> 996
>> 997 } while (!Done);
>> 998
>> 999 if (Inside && !Swap) {
>> 1000 if( theFinish == polishedbackpainted ||
>> 1001 theFinish == groundbackpainted ) {
>> 1002
>> 1003 if( !G4BooleanRand(theReflectivity) ) {
>> 1004 DoAbsorption();
>> 1005 }
>> 1006 else {
>> 1007 if (theStatus != FresnelRefraction ) {
>> 1008 theGlobalNormal = -theGlobalNormal;
>> 1009 }
>> 1010 else {
>> 1011 Swap = !Swap;
>> 1012 G4SwapPtr(Material1,Material2);
>> 1013 G4SwapObj(&Rindex1,&Rindex2);
>> 1014 }
>> 1015 if ( theFinish == groundbackpainted )
>> 1016 theStatus = LambertianReflection;
>> 1017
>> 1018 DoReflection();
>> 1019
>> 1020 theGlobalNormal = -theGlobalNormal;
>> 1021 OldMomentum = NewMomentum;
>> 1022
>> 1023 goto leap;
>> 1024 }
>> 1025 }
>> 1026 }
1349 } 1027 }
1350 1028
1351 //....oooOO0OOooo........oooOO0OOooo........o << 1029 // GetMeanFreePath
1352 G4double G4OpBoundaryProcess::GetMeanFreePath << 1030 // ---------------
>> 1031 //
>> 1032 G4double G4OpBoundaryProcess::GetMeanFreePath(const G4Track& ,
>> 1033 G4double ,
1353 1034 G4ForceCondition* condition)
1354 { 1035 {
1355 *condition = Forced; << 1036 *condition = Forced;
1356 return DBL_MAX; << 1037
>> 1038 return DBL_MAX;
1357 } 1039 }
1358 1040
1359 //....oooOO0OOooo........oooOO0OOooo........o << 1041 G4double G4OpBoundaryProcess::GetIncidentAngle()
1360 G4double G4OpBoundaryProcess::GetIncidentAngl <<
1361 { 1042 {
1362 return pi - std::acos(fOldMomentum * fFacet << 1043 G4double PdotN = OldMomentum * theFacetNormal;
1363 (fOldMomentum.mag() * << 1044 G4double magP= OldMomentum.mag();
>> 1045 G4double magN= theFacetNormal.mag();
>> 1046 G4double incidentangle = pi - std::acos(PdotN/(magP*magN));
>> 1047
>> 1048 return incidentangle;
1364 } 1049 }
1365 1050
1366 //....oooOO0OOooo........oooOO0OOooo........o <<
1367 G4double G4OpBoundaryProcess::GetReflectivity 1051 G4double G4OpBoundaryProcess::GetReflectivity(G4double E1_perp,
1368 1052 G4double E1_parl,
1369 1053 G4double incidentangle,
1370 << 1054 G4double RealRindex,
1371 << 1055 G4double ImaginaryRindex)
1372 { 1056 {
1373 G4complex reflectivity, reflectivity_TE, re <<
1374 G4complex N1(fRindex1, 0.), N2(realRindex, <<
1375 G4complex cosPhi; <<
1376 1057
1377 G4complex u(1., 0.); // unit number 1 << 1058 G4complex Reflectivity, Reflectivity_TE, Reflectivity_TM;
>> 1059 G4complex N(RealRindex, ImaginaryRindex);
>> 1060 G4complex CosPhi;
1378 1061
1379 G4complex numeratorTE; // E1_perp=1 E1_par << 1062 G4complex u(1,0); //unit number 1
1380 G4complex numeratorTM; // E1_parl=1 E1_per << 1063
>> 1064 G4complex numeratorTE; // E1_perp=1 E1_parl=0 -> TE polarization
>> 1065 G4complex numeratorTM; // E1_parl=1 E1_perp=0 -> TM polarization
1381 G4complex denominatorTE, denominatorTM; 1066 G4complex denominatorTE, denominatorTM;
1382 G4complex rTM, rTE; 1067 G4complex rTM, rTE;
1383 1068
1384 G4MaterialPropertiesTable* MPT = fMaterial1 <<
1385 G4MaterialPropertyVector* ppR = MPT->GetPr <<
1386 G4MaterialPropertyVector* ppI = MPT->GetPr <<
1387 if(ppR && ppI) <<
1388 { <<
1389 G4double rRindex = ppR->Value(fPhotonMome <<
1390 G4double iRindex = ppI->Value(fPhotonMome <<
1391 N1 = G4complex(rRindex, iRi <<
1392 } <<
1393 <<
1394 // Following two equations, rTM and rTE, ar 1069 // Following two equations, rTM and rTE, are from: "Introduction To Modern
1395 // Optics" written by Fowles 1070 // Optics" written by Fowles
1396 cosPhi = std::sqrt(u - ((std::sin(incidenta <<
1397 (N1 * N1) / (N2 * N <<
1398 1071
1399 numeratorTE = N1 * std::cos(incidentangle << 1072 CosPhi=std::sqrt(u-((std::sin(incidentangle)*std::sin(incidentangle))/(N*N)));
1400 denominatorTE = N1 * std::cos(incidentangle << 1073
1401 rTE = numeratorTE / denominatorTE << 1074 numeratorTE = std::cos(incidentangle) - N*CosPhi;
1402 << 1075 denominatorTE = std::cos(incidentangle) + N*CosPhi;
1403 numeratorTM = N2 * std::cos(incidentangle << 1076 rTE = numeratorTE/denominatorTE;
1404 denominatorTM = N2 * std::cos(incidentangle << 1077
1405 rTM = numeratorTM / denominatorTM << 1078 numeratorTM = N*std::cos(incidentangle) - CosPhi;
>> 1079 denominatorTM = N*std::cos(incidentangle) + CosPhi;
>> 1080 rTM = numeratorTM/denominatorTM;
1406 1081
1407 // This is my (PG) calculaton for reflectiv << 1082 // This is my calculaton for reflectivity on a metalic surface
1408 // depending on the fraction of TE and TM p 1083 // depending on the fraction of TE and TM polarization
1409 // when TE polarization, E1_parl=0 and E1_p 1084 // when TE polarization, E1_parl=0 and E1_perp=1, R=abs(rTE)^2 and
1410 // when TM polarization, E1_parl=1 and E1_p 1085 // when TM polarization, E1_parl=1 and E1_perp=0, R=abs(rTM)^2
1411 1086
1412 reflectivity_TE = (rTE * conj(rTE)) * (E1_p << 1087 Reflectivity_TE = (rTE*conj(rTE))*(E1_perp*E1_perp)
1413 (E1_perp * E1_perp + E1_p << 1088 / (E1_perp*E1_perp + E1_parl*E1_parl);
1414 reflectivity_TM = (rTM * conj(rTM)) * (E1_p << 1089 Reflectivity_TM = (rTM*conj(rTM))*(E1_parl*E1_parl)
1415 (E1_perp * E1_perp + E1_p << 1090 / (E1_perp*E1_perp + E1_parl*E1_parl);
1416 reflectivity = reflectivity_TE + reflectivi << 1091 Reflectivity = Reflectivity_TE + Reflectivity_TM;
1417 << 1092
1418 do << 1093 do {
1419 { << 1094 if(G4UniformRand()*real(Reflectivity) > real(Reflectivity_TE))
1420 if(G4UniformRand() * real(reflectivity) > << 1095 {iTE = -1;}else{iTE = 1;}
1421 { << 1096 if(G4UniformRand()*real(Reflectivity) > real(Reflectivity_TM))
1422 f_iTE = -1; << 1097 {iTM = -1;}else{iTM = 1;}
1423 } << 1098 } while(iTE<0&&iTM<0);
1424 else << 1099
1425 { << 1100 return real(Reflectivity);
1426 f_iTE = 1; <<
1427 } <<
1428 if(G4UniformRand() * real(reflectivity) > <<
1429 { <<
1430 f_iTM = -1; <<
1431 } <<
1432 else <<
1433 { <<
1434 f_iTM = 1; <<
1435 } <<
1436 // Loop checking, 13-Aug-2015, Peter Gump <<
1437 } while(f_iTE < 0 && f_iTM < 0); <<
1438 1101
1439 return real(reflectivity); <<
1440 } 1102 }
1441 1103
1442 //....oooOO0OOooo........oooOO0OOooo........o <<
1443 void G4OpBoundaryProcess::CalculateReflectivi 1104 void G4OpBoundaryProcess::CalculateReflectivity()
1444 { 1105 {
1445 G4double realRindex = fRealRIndexMPV->Value << 1106 G4double RealRindex =
1446 G4double imaginaryRindex = << 1107 PropertyPointer1->Value(thePhotonMomentum);
1447 fImagRIndexMPV->Value(fPhotonMomentum, id << 1108 G4double ImaginaryRindex =
>> 1109 PropertyPointer2->Value(thePhotonMomentum);
1448 1110
1449 // calculate FacetNormal 1111 // calculate FacetNormal
1450 if(fFinish == ground) << 1112 if ( theFinish == ground ) {
1451 { << 1113 theFacetNormal =
1452 fFacetNormal = GetFacetNormal(fOldMomentu << 1114 GetFacetNormal(OldMomentum, theGlobalNormal);
1453 } << 1115 } else {
1454 else << 1116 theFacetNormal = theGlobalNormal;
1455 { <<
1456 fFacetNormal = fGlobalNormal; <<
1457 } 1117 }
1458 1118
1459 G4double cost1 = -fOldMomentum * fFacetNorm << 1119 G4double PdotN = OldMomentum * theFacetNormal;
1460 if(std::abs(cost1) < 1.0 - fCarTolerance) << 1120 cost1 = -PdotN;
1461 { << 1121
1462 fSint1 = std::sqrt(1. - cost1 * cost1); << 1122 if (std::abs(cost1) < 1.0 - kCarTolerance) {
1463 } << 1123 sint1 = std::sqrt(1. - cost1*cost1);
1464 else << 1124 } else {
1465 { << 1125 sint1 = 0.0;
1466 fSint1 = 0.0; <<
1467 } 1126 }
1468 1127
1469 G4ThreeVector A_trans, A_paral, E1pp, E1pl; 1128 G4ThreeVector A_trans, A_paral, E1pp, E1pl;
1470 G4double E1_perp, E1_parl; 1129 G4double E1_perp, E1_parl;
1471 1130
1472 if(fSint1 > 0.0) << 1131 if (sint1 > 0.0 ) {
1473 { << 1132 A_trans = OldMomentum.cross(theFacetNormal);
1474 A_trans = (fOldMomentum.cross(fFacetNorma << 1133 A_trans = A_trans.unit();
1475 E1_perp = fOldPolarization * A_trans; << 1134 E1_perp = OldPolarization * A_trans;
1476 E1pp = E1_perp * A_trans; << 1135 E1pp = E1_perp * A_trans;
1477 E1pl = fOldPolarization - E1pp; << 1136 E1pl = OldPolarization - E1pp;
1478 E1_parl = E1pl.mag(); << 1137 E1_parl = E1pl.mag();
1479 } << 1138 }
1480 else << 1139 else {
1481 { << 1140 A_trans = OldPolarization;
1482 A_trans = fOldPolarization; << 1141 // Here we Follow Jackson's conventions and we set the
1483 // Here we Follow Jackson's conventions a << 1142 // parallel component = 1 in case of a ray perpendicular
1484 // component = 1 in case of a ray perpend << 1143 // to the surface
1485 E1_perp = 0.0; << 1144 E1_perp = 0.0;
1486 E1_parl = 1.0; << 1145 E1_parl = 1.0;
1487 } 1146 }
1488 1147
>> 1148 //calculate incident angle
1489 G4double incidentangle = GetIncidentAngle() 1149 G4double incidentangle = GetIncidentAngle();
1490 1150
1491 // calculate the reflectivity depending on << 1151 //calculate the reflectivity depending on incident angle,
1492 // polarization and complex refractive << 1152 //polarization and complex refractive
1493 fReflectivity = GetReflectivity(E1_perp, E1 <<
1494 imaginaryRi <<
1495 } <<
1496 1153
1497 //....oooOO0OOooo........oooOO0OOooo........o << 1154 theReflectivity =
1498 G4bool G4OpBoundaryProcess::InvokeSD(const G4 << 1155 GetReflectivity(E1_perp, E1_parl, incidentangle,
1499 { << 1156 RealRindex, ImaginaryRindex);
1500 G4Step aStep = *pStep; <<
1501 aStep.AddTotalEnergyDeposit(fPhotonMomentum <<
1502 <<
1503 G4VSensitiveDetector* sd = aStep.GetPostSte <<
1504 if(sd != nullptr) <<
1505 return sd->Hit(&aStep); <<
1506 else <<
1507 return false; <<
1508 } <<
1509 <<
1510 //....oooOO0OOooo........oooOO0OOooo........o <<
1511 inline void G4OpBoundaryProcess::SetInvokeSD( <<
1512 { <<
1513 fInvokeSD = flag; <<
1514 G4OpticalParameters::Instance()->SetBoundar <<
1515 } <<
1516 <<
1517 //....oooOO0OOooo........oooOO0OOooo........o <<
1518 void G4OpBoundaryProcess::SetVerboseLevel(G4i <<
1519 { <<
1520 verboseLevel = verbose; <<
1521 G4OpticalParameters::Instance()->SetBoundar <<
1522 } <<
1523 <<
1524 //....oooOO0OOooo........oooOO0OOooo........o <<
1525 void G4OpBoundaryProcess::CoatedDielectricDie <<
1526 { <<
1527 G4MaterialPropertyVector* pp = nullptr; <<
1528 <<
1529 G4MaterialPropertiesTable* MPT = fMaterial2 <<
1530 if((pp = MPT->GetProperty(kRINDEX))) <<
1531 { <<
1532 fRindex2 = pp->Value(fPhotonMomentum, idx <<
1533 } <<
1534 <<
1535 MPT = fOpticalSurface->GetMaterialPropertie <<
1536 if((pp = MPT->GetProperty(kCOATEDRINDEX))) <<
1537 { <<
1538 fCoatedRindex = pp->Value(fPhotonMomentum <<
1539 } <<
1540 if(MPT->ConstPropertyExists(kCOATEDTHICKNES <<
1541 { <<
1542 fCoatedThickness = MPT->GetConstProperty( <<
1543 } <<
1544 if(MPT->ConstPropertyExists(kCOATEDFRUSTRAT <<
1545 { <<
1546 fCoatedFrustratedTransmission = <<
1547 (G4bool)MPT->GetConstProperty(kCOATEDFR <<
1548 } <<
1549 <<
1550 G4double sintTL; <<
1551 G4double wavelength = h_Planck * c_light / <<
1552 G4double PdotN; <<
1553 G4double E1_perp, E1_parl; <<
1554 G4double s1, E2_perp, E2_parl, E2_total, tr <<
1555 G4double E2_abs, C_parl, C_perp; <<
1556 G4double alpha; <<
1557 G4ThreeVector A_trans, A_paral, E1pp, E1pl; <<
1558 //G4bool Inside = false; <<
1559 //G4bool Swap = false; <<
1560 G4bool through = false; <<
1561 G4bool done = false; <<
1562 <<
1563 do { <<
1564 if (through) <<
1565 { <<
1566 //Swap = !Swap; <<
1567 through = false; <<
1568 fGlobalNormal = -fGlobalNormal; <<
1569 G4SwapPtr(fMaterial1, fMaterial2); <<
1570 G4SwapObj(&fRindex1, &fRindex2); <<
1571 } <<
1572 <<
1573 if(fFinish == polished) <<
1574 { <<
1575 fFacetNormal = fGlobalNormal; <<
1576 } <<
1577 else <<
1578 { <<
1579 fFacetNormal = GetFacetNormal(fOldMomen <<
1580 } <<
1581 <<
1582 PdotN = fOldMomentum * fFacetNormal; <<
1583 G4double cost1 = -PdotN; <<
1584 G4double sint2, cost2 = 0.; <<
1585 <<
1586 if (std::abs(cost1) < 1.0 - fCarTolerance <<
1587 { <<
1588 fSint1 = std::sqrt(1. - cost1 * cost1); <<
1589 sint2 = fSint1 * fRindex1 / fRindex2; <<
1590 sintTL = fSint1 * fRindex1 / fCoatedRin <<
1591 } else <<
1592 { <<
1593 fSint1 = 0.0; <<
1594 sint2 = 0.0; <<
1595 sintTL = 0.0; <<
1596 } <<
1597 <<
1598 if (fSint1 > 0.0) <<
1599 { <<
1600 A_trans = fOldMomentum.cross(fFacetNorm <<
1601 A_trans = A_trans.unit(); <<
1602 E1_perp = fOldPolarization * A_trans; <<
1603 E1pp = E1_perp * A_trans; <<
1604 E1pl = fOldPolarization - E1pp; <<
1605 E1_parl = E1pl.mag(); <<
1606 } <<
1607 else <<
1608 { <<
1609 A_trans = fOldPolarization; <<
1610 E1_perp = 0.0; <<
1611 E1_parl = 1.0; <<
1612 } <<
1613 <<
1614 s1 = fRindex1 * cost1; <<
1615 <<
1616 if (cost1 > 0.0) <<
1617 { <<
1618 cost2 = std::sqrt(1. - sint2 * sint2); <<
1619 } <<
1620 else <<
1621 { <<
1622 cost2 = -std::sqrt(1. - sint2 * sint2); <<
1623 } <<
1624 <<
1625 transCoeff = 0.0; <<
1626 <<
1627 if (sintTL >= 1.0) <<
1628 { // --> Angle > Angle Limit <<
1629 //Swap = false; <<
1630 } <<
1631 E2_perp = 2. * s1 * E1_perp / (fRindex1 * <<
1632 E2_parl = 2. * s1 * E1_parl / (fRindex2 * <<
1633 E2_total = E2_perp * E2_perp + E2_parl * <<
1634 <<
1635 transCoeff = 1. - GetReflectivityThroughT <<
1636 sintTL, E1_perp, E1_p <<
1637 if (!G4BooleanRand(transCoeff)) <<
1638 { <<
1639 if(verboseLevel > 2) <<
1640 G4cout << "Reflection from " << fMate <<
1641 << fMaterial2->GetName() << G4 <<
1642 <<
1643 //Swap = false; <<
1644 <<
1645 if (sintTL >= 1.0) <<
1646 { <<
1647 fStatus = TotalInternalReflection; <<
1648 } <<
1649 else <<
1650 { <<
1651 fStatus = CoatedDielectricReflection; <<
1652 } <<
1653 <<
1654 PdotN = fOldMomentum * fFacetNormal; <<
1655 fNewMomentum = fOldMomentum - (2. * Pdo <<
1656 <<
1657 if (fSint1 > 0.0) { // incident ray o <<
1658 <<
1659 E2_parl = fRindex2 * E2_parl / fRinde <<
1660 E2_perp = E2_perp - E1_perp; <<
1661 E2_total = E2_perp * E2_perp + E2_par <<
1662 A_paral = fNewMomentum.cross(A_trans) <<
1663 A_paral = A_paral.unit(); <<
1664 E2_abs = std::sqrt(E2_total); <<
1665 C_parl = E2_parl / E2_abs; <<
1666 C_perp = E2_perp / E2_abs; <<
1667 <<
1668 fNewPolarization = C_parl * A_paral + <<
1669 <<
1670 } <<
1671 else <<
1672 { // incident ray perpend <<
1673 if (fRindex2 > fRindex1) <<
1674 { <<
1675 fNewPolarization = -fOldPolarizatio <<
1676 } <<
1677 else <<
1678 { <<
1679 fNewPolarization = fOldPolarization <<
1680 } <<
1681 } <<
1682 <<
1683 } else { // photon gets transmitted <<
1684 if (verboseLevel > 2) <<
1685 G4cout << "Transmission from " << fMa <<
1686 << fMaterial2->GetName() << G4 <<
1687 <<
1688 //Inside = !Inside; <<
1689 through = true; <<
1690 <<
1691 if (fEfficiency > 0.) <<
1692 { <<
1693 DoAbsorption(); <<
1694 return; <<
1695 } <<
1696 else <<
1697 { <<
1698 if (sintTL >= 1.0) <<
1699 { <<
1700 fStatus = CoatedDielectricFrustrate <<
1701 } <<
1702 else <<
1703 { <<
1704 fStatus = CoatedDielectricRefractio <<
1705 } <<
1706 <<
1707 if (fSint1 > 0.0) { // incident <<
1708 <<
1709 alpha = cost1 - cost2 * (fRindex2 / <<
1710 fNewMomentum = fOldMomentum + alpha <<
1711 fNewMomentum = fNewMomentum.unit(); <<
1712 A_paral = fNewMomentum.cross(A_tran <<
1713 A_paral = A_paral.unit(); <<
1714 E2_abs = std::sqrt(E2_total); <<
1715 C_parl = E2_parl / E2_abs; <<
1716 C_perp = E2_perp / E2_abs; <<
1717 <<
1718 fNewPolarization = C_parl * A_paral <<
1719 <<
1720 } <<
1721 else <<
1722 { // incident ray pe <<
1723 fNewMomentum = fOldMomentum; <<
1724 fNewPolarization = fOldPolarization <<
1725 } <<
1726 } <<
1727 } <<
1728 <<
1729 fOldMomentum = fNewMomentum.unit(); <<
1730 fOldPolarization = fNewPolarization.unit( <<
1731 if ((fStatus == CoatedDielectricFrustrate <<
1732 (fStatus == CoatedDielectricRefractio <<
1733 { <<
1734 done = (fNewMomentum * fGlobalNormal <= <<
1735 } <<
1736 else <<
1737 { <<
1738 done = (fNewMomentum * fGlobalNormal >= <<
1739 } <<
1740 <<
1741 } while (!done); <<
1742 } <<
1743 <<
1744 //....oooOO0OOooo........oooOO0OOooo........o <<
1745 G4double G4OpBoundaryProcess::GetReflectivity <<
1746 G4double E1_perp, <<
1747 G4double E1_parl, <<
1748 G4double wavelength, G4dou <<
1749 G4complex Reflectivity, Reflectivity_TE, Re <<
1750 G4double gammaTL, costTL; <<
1751 <<
1752 G4complex i(0, 1); <<
1753 G4complex rTM, rTE; <<
1754 G4complex r1toTL, rTLto2; <<
1755 G4double k0 = 2 * pi / wavelength; <<
1756 <<
1757 // Angle > Angle limit <<
1758 if (sinTL >= 1.0) { <<
1759 if (fCoatedFrustratedTransmission) { //Fr <<
1760 <<
1761 if (cost1 > 0.0) <<
1762 { <<
1763 gammaTL = std::sqrt(fRindex1 * fRinde <<
1764 fCoatedRindex * fCoatedRin <<
1765 } <<
1766 else <<
1767 { <<
1768 gammaTL = -std::sqrt(fRindex1 * fRind <<
1769 fCoatedRindex * fCoatedRin <<
1770 } <<
1771 <<
1772 // TE <<
1773 r1toTL = (fRindex1 * cost1 - i * gammaT <<
1774 rTLto2 = (i * gammaTL - fRindex2 * cost <<
1775 if (cost1 != 0.0) <<
1776 { <<
1777 rTE = (r1toTL + rTLto2 * std::exp(-2 <<
1778 (1.0 + r1toTL * rTLto2 * std <<
1779 } <<
1780 // TM <<
1781 r1toTL = (fRindex1 * i * gammaTL - fCoa <<
1782 (fRindex1 * i * gammaTL + f <<
1783 rTLto2 = (fCoatedRindex * fCoatedRindex <<
1784 (fCoatedRindex * fCoatedRin <<
1785 if (cost1 != 0.0) <<
1786 { <<
1787 rTM = (r1toTL + rTLto2 * std::exp(-2 <<
1788 (1.0 + r1toTL * rTLto2 * std <<
1789 } <<
1790 } <<
1791 else <<
1792 { //Total reflection <<
1793 return(1.); <<
1794 } <<
1795 } <<
1796 <<
1797 // Angle <= Angle limit <<
1798 else //if (sinTL < 1.0) <<
1799 { <<
1800 if (cost1 > 0.0) <<
1801 { <<
1802 costTL = std::sqrt(1. - sinTL * sinTL); <<
1803 } <<
1804 else <<
1805 { <<
1806 costTL = -std::sqrt(1. - sinTL * sinTL) <<
1807 } <<
1808 // TE <<
1809 r1toTL = (fRindex1 * cost1 - fCoatedRinde <<
1810 rTLto2 = (fCoatedRindex * costTL - fRinde <<
1811 if (cost1 != 0.0) <<
1812 { <<
1813 rTE = (r1toTL + rTLto2 * std::exp(2.0 * <<
1814 (1.0 + r1toTL * rTLto2 * std::exp <<
1815 } <<
1816 // TM <<
1817 r1toTL = (fRindex1 * costTL - fCoatedRind <<
1818 rTLto2 = (fCoatedRindex * cost2 - fRindex <<
1819 if (cost1 != 0.0) <<
1820 { <<
1821 rTM = (r1toTL + rTLto2 * std::exp(2.0 * <<
1822 (1.0 + r1toTL * rTLto2 * std::exp <<
1823 } <<
1824 } <<
1825 <<
1826 Reflectivity_TE = (rTE * conj(rTE)) * (E1_p <<
1827 Reflectivity_TM = (rTM * conj(rTM)) * (E1_p <<
1828 Reflectivity = Reflectivity_TE + Reflectivi <<
1829 <<
1830 return real(Reflectivity); <<
1831 } 1157 }
1832 1158